Only Win32 target is supported! And QT Creator layout issue?

[hazbody21]

I have had this error below show up on every single project I tried to build, including the example projects:

define.h:4:10: In included file: Only Win32 target is supported!
_mingw.h:271:2: error occurred here

I'm developing on Ubuntu 20.04.6 LTS and QT version 6.3.1 (Was previously working on another desktop) I suspect the issue could be kit-related but the only way to check is edit -> preferences as the left menu bar (the one with welcome, edit, design, projects) isn't showing up. Tried re-installing QT creator and didn't help:

[SGaist]

@hazbody21 build-essentials being a meta package you can see that only it was reinstalled not the ones you are looking for. I would uninstall it and all its dependencies and then reinstall it.

[hazbody21]

What can i provide that will make it more useful to find a solution? I've tried every solution I came across for the error with no avail. Here is the compile output when trying to run a blank project I just made:

13:18:54: Configuration is faulty. Check the Issues view for details.
Error while building/deploying project TextFinder (kit: Desktop Qt 6.3.1 GCC 64bit)
When executing step "Build"

[SGaist]

Hi and welcome to devnet,

How did you install Qt ?
Did you also try with your distribution provided Qt ?

[hazbody21]

@SGaist Hello! Thank you for your reply,
I installed everything using the maintenance tool. I'm not sure what do you mean by distribution provided Qt.

[SGaist]

Ubuntu also provides Qt as well as the corresponding development packages that you can use to develop Qt based applications.

[hazbody21]

@SGaist
My goal is to use QT to develop GUIs using QT widgets for now, so I need both design studio and creator.
I found a qmake file in "/usr/lib/x86_64-linux-gnu/qt5" I assume that is what you meant, added that to a kit and tried building, here is the compile output:

15:13:45: Running steps for project texteditor...
15:13:45: Starting: "/usr/lib/x86_64-linux-gnu/qt5/bin/qmake" /home/crc/Qt/Examples/Qt-6.3.1/quickcontrols2/texteditor/texteditor.pro -spec linux-g++ CONFIG+=debug CONFIG+=qml_debug
Project ERROR: Unknown module(s) in QT: quick quickcontrols2
15:13:45: The process "/usr/lib/x86_64-linux-gnu/qt5/bin/qmake" exited with code 3.
Error while building/deploying project texteditor (kit: Unnamed)
When executing step "qmake"
15:13:45: Elapsed time: 00:00.

The only auto-detected qt is the 6.3.1 I downloaded (see screeenshot)
Reinstalling creator for the 4th or so time fixed the layout issue too:

[SGaist]

Your distribution provided Qt is from the 5 series.

Since you are mentioning widgets only, I don't think you need Qt Design Studio. Or did you mean Designer ?

[hazbody21]

@SGaist
I also want to use qt quick but that's not an immediate concern now. Yes, it seems it's from the 5 series but that still doesn't build any projects and is throwing the same error thousands of times. I'm not very concerned about the version number as long as I can compile and run GUI projects.

Here is a portion of the end of the compile output:

/usr/include/time.h:143:26: error: expected initializer before ‘_strftime_l’
  143 |   _CRTIMP size_t __cdecl _strftime_l(char * __restrict__ _Buf,size_t _Max_size,const char * __restrict__ _Format,const struct tm * __restrict__ _Tm,_locale_t _Locale);
      |                          ^~~~~~~~~~~
/usr/include/time.h:144:25: error: expected initializer before ‘_strdate’
  144 |   _CRTIMP char *__cdecl _strdate(char *_Buffer) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
      |                         ^~~~~~~~
In file included from /usr/include/c++/9/cstdlib:75,
                 from /usr/include/c++/9/stdlib.h:36,
                 from /usr/include/assert.h:17,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qglobal.h:50,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qiodevice.h:43,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/qserialport.h:44,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/QSerialPort:1,
                 from ../UI_Testing2/packet.h:4,
                 from moc_packet.cpp:9:
/usr/include/time.h:145:3: error: expected constructor, destructor, or type conversion before ‘(’ token
  145 |   _SECIMP errno_t __cdecl _strdate_s (char *_Buf,size_t _SizeInBytes);
      |   ^~~~~~~
In file included from /usr/include/c++/9/ctime:42,
                 from /usr/include/c++/9/chrono:41,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:59,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qiodevice.h:45,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/qserialport.h:44,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/QSerialPort:1,
                 from ../UI_Testing2/packet.h:4,
                 from moc_packet.cpp:9:
/usr/include/time.h:146:25: error: expected initializer before ‘_strtime’
  146 |   _CRTIMP char *__cdecl _strtime(char *_Buffer) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
      |                         ^~~~~~~~
In file included from /usr/include/c++/9/cstdlib:75,
                 from /usr/include/c++/9/stdlib.h:36,
                 from /usr/include/assert.h:17,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qglobal.h:50,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qiodevice.h:43,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/qserialport.h:44,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/QSerialPort:1,
                 from ../UI_Testing2/packet.h:4,
                 from moc_packet.cpp:9:
/usr/include/time.h:147:3: error: expected constructor, destructor, or type conversion before ‘(’ token
  147 |   _SECIMP errno_t __cdecl _strtime_s (char *_Buf ,size_t _SizeInBytes);
      |   ^~~~~~~
In file included from /usr/include/c++/9/ctime:42,
                 from /usr/include/c++/9/chrono:41,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:59,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qiodevice.h:45,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/qserialport.h:44,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/QSerialPort:1,
                 from ../UI_Testing2/packet.h:4,
                 from moc_packet.cpp:9:
/usr/include/time.h:148:22: error: expected initializer before ‘_time32’
  148 |   __time32_t __cdecl _time32(__time32_t *_Time);
      |                      ^~~~~~~
/usr/include/time.h:149:22: error: expected initializer before ‘_mktime32’
  149 |   __time32_t __cdecl _mktime32(struct tm *_Tm);
      |                      ^~~~~~~~~
/usr/include/time.h:150:22: error: expected initializer before ‘_mkgmtime32’
  150 |   __time32_t __cdecl _mkgmtime32(struct tm *_Tm);
      |                      ^~~~~~~~~~~
/usr/include/time.h:153:16: error: expected initializer before ‘tzset’
  153 |   void __cdecl tzset(void) __MINGW_ATTRIB_DEPRECATED_MSVC2005;
      |                ^~~~~
/usr/include/time.h:159:16: error: expected initializer before ‘_tzset’
  159 |   void __cdecl _tzset(void);
      |                ^~~~~~
/usr/include/time.h:162:18: error: expected initializer before ‘_difftime64’
  162 |   double __cdecl _difftime64(__time64_t _Time1,__time64_t _Time2);
      |                  ^~~~~~~~~~~
/usr/include/time.h:163:25: error: expected initializer before ‘_ctime64’
  163 |   _CRTIMP char *__cdecl _ctime64(const __time64_t *_Time) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
      |                         ^~~~~~~~
In file included from /usr/include/c++/9/cstdlib:75,
                 from /usr/include/c++/9/stdlib.h:36,
                 from /usr/include/assert.h:17,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qglobal.h:50,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qiodevice.h:43,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/qserialport.h:44,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/QSerialPort:1,
                 from ../UI_Testing2/packet.h:4,
                 from moc_packet.cpp:9:
/usr/include/time.h:164:3: error: expected constructor, destructor, or type conversion before ‘(’ token
  164 |   _SECIMP errno_t __cdecl _ctime64_s (char *_Buf,size_t _SizeInBytes,const __time64_t *_Time);
      |   ^~~~~~~
In file included from /usr/include/c++/9/ctime:42,
                 from /usr/include/c++/9/chrono:41,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:59,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qiodevice.h:45,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/qserialport.h:44,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/QSerialPort:1,
                 from ../UI_Testing2/packet.h:4,
                 from moc_packet.cpp:9:
/usr/include/time.h:165:30: error: expected initializer before ‘_gmtime64’
  165 |   _CRTIMP struct tm *__cdecl _gmtime64(const __time64_t *_Time) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
      |                              ^~~~~~~~~
In file included from /usr/include/c++/9/cstdlib:75,
                 from /usr/include/c++/9/stdlib.h:36,
                 from /usr/include/assert.h:17,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qglobal.h:50,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qiodevice.h:43,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/qserialport.h:44,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/QSerialPort:1,
                 from ../UI_Testing2/packet.h:4,
                 from moc_packet.cpp:9:
/usr/include/time.h:166:3: error: expected constructor, destructor, or type conversion before ‘(’ token
  166 |   _SECIMP errno_t __cdecl _gmtime64_s (struct tm *_Tm,const __time64_t *_Time);
      |   ^~~~~~~
In file included from /usr/include/c++/9/ctime:42,
                 from /usr/include/c++/9/chrono:41,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:59,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qiodevice.h:45,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/qserialport.h:44,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/QSerialPort:1,
                 from ../UI_Testing2/packet.h:4,
                 from moc_packet.cpp:9:
/usr/include/time.h:167:30: error: expected initializer before ‘_localtime64’
  167 |   _CRTIMP struct tm *__cdecl _localtime64(const __time64_t *_Time) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
      |                              ^~~~~~~~~~~~
In file included from /usr/include/c++/9/cstdlib:75,
                 from /usr/include/c++/9/stdlib.h:36,
                 from /usr/include/assert.h:17,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qglobal.h:50,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qiodevice.h:43,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/qserialport.h:44,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/QSerialPort:1,
                 from ../UI_Testing2/packet.h:4,
                 from moc_packet.cpp:9:
/usr/include/time.h:168:3: error: expected constructor, destructor, or type conversion before ‘(’ token
  168 |   _SECIMP errno_t __cdecl _localtime64_s (struct tm *_Tm,const __time64_t *_Time);
      |   ^~~~~~~
In file included from /usr/include/c++/9/ctime:42,
                 from /usr/include/c++/9/chrono:41,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:59,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qiodevice.h:45,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/qserialport.h:44,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/QSerialPort:1,
                 from ../UI_Testing2/packet.h:4,
                 from moc_packet.cpp:9:
/usr/include/time.h:169:30: error: expected initializer before ‘_mktime64’
  169 |   _CRTIMP __time64_t __cdecl _mktime64(struct tm *_Tm);
      |                              ^~~~~~~~~
/usr/include/time.h:170:30: error: expected initializer before ‘_mkgmtime64’
  170 |   _CRTIMP __time64_t __cdecl _mkgmtime64(struct tm *_Tm);
      |                              ^~~~~~~~~~~
/usr/include/time.h:171:30: error: expected initializer before ‘_time64’
  171 |   _CRTIMP __time64_t __cdecl _time64(__time64_t *_Time);
      |                              ^~~~~~~
/usr/include/time.h:172:20: error: expected initializer before ‘_getsystime’
  172 |   unsigned __cdecl _getsystime(struct tm *_Tm);
      |                    ^~~~~~~~~~~
/usr/include/time.h:173:20: error: expected initializer before ‘_setsystime’
  173 |   unsigned __cdecl _setsystime(struct tm *_Tm,unsigned _MilliSec);
      |                    ^~~~~~~~~~~
/usr/include/time.h:218:16: error: expected initializer before ‘difftime’
  218 | double __cdecl difftime(time_t _Time1,time_t _Time2);
      |                ^~~~~~~~
/usr/include/time.h:219:15: error: expected initializer before ‘ctime’
  219 | char *__cdecl ctime(const time_t *_Time) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
      |               ^~~~~
/usr/include/time.h:220:20: error: expected initializer before ‘gmtime’
  220 | struct tm *__cdecl gmtime(const time_t *_Time) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
      |                    ^~~~~~
/usr/include/time.h:221:20: error: expected initializer before ‘localtime’
  221 | struct tm *__cdecl localtime(const time_t *_Time) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
      |                    ^~~~~~~~~
/usr/include/time.h:223:16: error: expected initializer before ‘mktime’
  223 | time_t __cdecl mktime(struct tm *_Tm);
      |                ^~~~~~
/usr/include/time.h:224:16: error: expected initializer before ‘_mkgmtime’
  224 | time_t __cdecl _mkgmtime(struct tm *_Tm);
      |                ^~~~~~~~~
/usr/include/time.h:225:16: error: expected initializer before ‘time’
  225 | time_t __cdecl time(time_t *_Time);
      |                ^~~~
/usr/include/time.h:235:30: error: expected initializer before ‘difftime’
  235 | __TIME_INLINE double __cdecl difftime(time_t _Time1,time_t _Time2)
      |                              ^~~~~~~~
/usr/include/time.h:237:29: error: expected initializer before ‘ctime’
  237 | __TIME_INLINE char *__cdecl ctime(const time_t *_Time) { return _ctime64(_Time); }
      |                             ^~~~~
/usr/include/time.h:238:34: error: expected initializer before ‘gmtime’
  238 | __TIME_INLINE struct tm *__cdecl gmtime(const time_t *_Time) { return _gmtime64(_Time); }
      |                                  ^~~~~~
/usr/include/time.h:239:34: error: expected initializer before ‘localtime’
  239 | __TIME_INLINE struct tm *__cdecl localtime(const time_t *_Time) { return _localtime64(_Time); }
      |                                  ^~~~~~~~~
/usr/include/time.h:240:30: error: expected initializer before ‘mktime’
  240 | __TIME_INLINE time_t __cdecl mktime(struct tm *_Tm) { return _mktime64(_Tm); }
      |                              ^~~~~~
/usr/include/time.h:241:30: error: expected initializer before ‘_mkgmtime’
  241 | __TIME_INLINE time_t __cdecl _mkgmtime(struct tm *_Tm) { return _mkgmtime64(_Tm); }
      |                              ^~~~~~~~~
/usr/include/time.h:242:30: error: expected initializer before ‘time’
  242 | __TIME_INLINE time_t __cdecl time(time_t *_Time) { return _time64(_Time); }
      |                              ^~~~
/usr/include/time.h:261:31: error: expected initializer before ‘localtime_s’
  261 | __forceinline errno_t __cdecl localtime_s(struct tm *_Tm,const time_t *_Time) { return _localtime64_s(_Tm,_Time); }
      |                               ^~~~~~~~~~~
/usr/include/time.h:262:31: error: expected initializer before ‘gmtime_s’
  262 | __forceinline errno_t __cdecl gmtime_s(struct tm *_Tm, const time_t *_Time) { return _gmtime64_s(_Tm, _Time); }
      |                               ^~~~~~~~
/usr/include/time.h:263:31: error: expected initializer before ‘ctime_s’
  263 | __forceinline errno_t __cdecl ctime_s(char *_Buf,size_t _SizeInBytes,const time_t *_Time) { return _ctime64_s(_Buf,_SizeInBytes,_Time); }
      |                               ^~~~~~~
/usr/include/time.h:283:16: error: expected initializer before ‘tzset’
  283 |   void __cdecl tzset(void) __MINGW_ATTRIB_DEPRECATED_MSVC2005;
      |                ^~~~~
In file included from /usr/include/c++/9/ctime:42,
                 from /usr/include/c++/9/chrono:41,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:59,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qiodevice.h:45,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/qserialport.h:44,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/QSerialPort:1,
                 from ../UI_Testing2/packet.h:4,
                 from moc_packet.cpp:9:
/usr/include/time.h:295:22: error: expected initializer before ‘mingw_gettimeofday’
  295 |   extern int __cdecl mingw_gettimeofday (struct timeval *p, struct timezone *z);
      |                      ^~~~~~~~~~~~~~~~~~
/usr/include/time.h:309:34: error: expected initializer before ‘localtime_r’
  309 | __forceinline struct tm *__cdecl localtime_r(const time_t *_Time, struct tm *_Tm) {
      |                                  ^~~~~~~~~~~
/usr/include/time.h:312:34: error: expected initializer before ‘gmtime_r’
  312 | __forceinline struct tm *__cdecl gmtime_r(const time_t *_Time, struct tm *_Tm) {
      |                                  ^~~~~~~~
/usr/include/time.h:315:29: error: expected initializer before ‘ctime_r’
  315 | __forceinline char *__cdecl ctime_r(const time_t *_Time, char *_Str) {
      |                             ^~~~~~~
/usr/include/time.h:318:29: error: expected initializer before ‘asctime_r’
  318 | __forceinline char *__cdecl asctime_r(const struct tm *_Tm, char * _Str) {
      |                             ^~~~~~~~~
In file included from /usr/include/time.h:332,
                 from /usr/include/c++/9/ctime:42,
                 from /usr/include/c++/9/chrono:41,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:59,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qiodevice.h:45,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/qserialport.h:44,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/QSerialPort:1,
                 from ../UI_Testing2/packet.h:4,
                 from moc_packet.cpp:9:
/usr/include/pthread_time.h:84:28: error: expected initializer before ‘nanosleep’
   84 | int __cdecl WINPTHREAD_API nanosleep(const struct timespec *request, struct timespec *remain);
      |                            ^~~~~~~~~
/usr/include/pthread_time.h:86:28: error: expected initializer before ‘clock_nanosleep’
   86 | int __cdecl WINPTHREAD_API clock_nanosleep(clockid_t clock_id, int flags, const struct timespec *request, struct timespec *remain);
      |                            ^~~~~~~~~~~~~~~
In file included from /usr/include/time.h:332,
                 from /usr/include/c++/9/ctime:42,
                 from /usr/include/c++/9/chrono:41,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:59,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qiodevice.h:45,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/qserialport.h:44,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/QSerialPort:1,
                 from ../UI_Testing2/packet.h:4,
                 from moc_packet.cpp:9:
/usr/include/pthread_time.h:87:28: error: expected initializer before ‘clock_getres’
   87 | int __cdecl WINPTHREAD_API clock_getres(clockid_t clock_id, struct timespec *res);
      |                            ^~~~~~~~~~~~
/usr/include/pthread_time.h:88:28: error: expected initializer before ‘clock_gettime’
   88 | int __cdecl WINPTHREAD_API clock_gettime(clockid_t clock_id, struct timespec *tp);
      |                            ^~~~~~~~~~~~~
/usr/include/pthread_time.h:89:28: error: expected initializer before ‘clock_settime’
   89 | int __cdecl WINPTHREAD_API clock_settime(clockid_t clock_id, const struct timespec *tp);
      |                            ^~~~~~~~~~~~~
In file included from /usr/include/c++/9/chrono:41,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:59,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qiodevice.h:45,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/qserialport.h:44,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/QSerialPort:1,
                 from ../UI_Testing2/packet.h:4,
                 from moc_packet.cpp:9:
/usr/include/c++/9/ctime:64:11: error: ‘::clock’ has not been declared
   64 |   using ::clock;
      |           ^~~~~
/usr/include/c++/9/ctime:65:11: error: ‘::difftime’ has not been declared
   65 |   using ::difftime;
      |           ^~~~~~~~
/usr/include/c++/9/ctime:66:11: error: ‘::mktime’ has not been declared
   66 |   using ::mktime;
      |           ^~~~~~
/usr/include/c++/9/ctime:67:11: error: ‘::time’ has not been declared
   67 |   using ::time;
      |           ^~~~
/usr/include/c++/9/ctime:68:11: error: ‘::asctime’ has not been declared
   68 |   using ::asctime;
      |           ^~~~~~~
/usr/include/c++/9/ctime:69:11: error: ‘::ctime’ has not been declared
   69 |   using ::ctime;
      |           ^~~~~
/usr/include/c++/9/ctime:70:11: error: ‘::gmtime’ has not been declared
   70 |   using ::gmtime;
      |           ^~~~~~
/usr/include/c++/9/ctime:71:11: error: ‘::localtime’ has not been declared
   71 |   using ::localtime;
      |           ^~~~~~~~~
/usr/include/c++/9/ctime:72:11: error: ‘::strftime’ has not been declared
   72 |   using ::strftime;
      |           ^~~~~~~~
/usr/include/c++/9/ctime:80:11: error: ‘::timespec_get’ has not been declared
   80 |   using ::timespec_get;
      |           ^~~~~~~~~~~~
make: *** [Makefile:453: moc_millidelay.o] Error 1
../UI_Testing2/packet.cpp: In member function ‘void Packet::Reset()’:
../UI_Testing2/packet.cpp:285:5: error: ‘memset’ was not declared in this scope
  285 |     memset(rxBuff, 0, sizeof(rxBuff));
      |     ^~~~~~
../UI_Testing2/packet.cpp:7:1: note: ‘memset’ is defined in header ‘<cstring>’; did you forget to ‘#include <cstring>’?
    6 | #include <QDebug>
  +++ |+#include <cstring>
    7 | 
In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:49,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qiodevice.h:45,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/qserialport.h:44,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/QSerialPort:1,
                 from ../UI_Testing2/packet.h:4,
                 from ../UI_Testing2/packet.cpp:1:
/usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h: In instantiation of ‘void QList<T>::node_copy(QList<T>::Node*, QList<T>::Node*, QList<T>::Node*) [with T = QString]’:
/usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:816:13:   required from ‘QList<T>::QList(const QList<T>&) [with T = QString]’
/usr/include/x86_64-linux-gnu/qt5/QtCore/qstringlist.h:105:67:   required from here
/usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:489:19: error: ‘memcpy’ was not declared in this scope
  489 |             memcpy(from, src, (to - from) * sizeof(Node));
      |             ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:489:19: note: ‘memcpy’ is defined in header ‘<cstring>’; did you forget to ‘#include <cstring>’?
moc_packet.cpp: In member function ‘virtual void* Packet::qt_metacast(const char*)’:
moc_packet.cpp:83:10: error: ‘strcmp’ was not declared in this scope
   83 |     if (!strcmp(_clname, qt_meta_stringdata_Packet.stringdata0))
      |          ^~~~~~
moc_packet.cpp:10:1: note: ‘strcmp’ is defined in header ‘<cstring>’; did you forget to ‘#include <cstring>’?
    9 | #include "../UI_Testing2/packet.h"
  +++ |+#include <cstring>
   10 | #include <QtCore/qbytearray.h>
/usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h: In instantiation of ‘void QList<T>::node_copy(QList<T>::Node*, QList<T>::Node*, QList<T>::Node*) [with T = QVariant]’:
/usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:791:9:   required from ‘void QList<T>::detach_helper(int) [with T = QVariant]’
/usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:575:13:   required from ‘void QList<T>::reserve(int) [with T = QVariant]’
/usr/include/x86_64-linux-gnu/qt5/QtCore/qvariant.h:790:38:   required from here
/usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:489:19: error: ‘memcpy’ was not declared in this scope
/usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:489:19: note: ‘memcpy’ is defined in header ‘<cstring>’; did you forget to ‘#include <cstring>’?
In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:49,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qiodevice.h:45,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/qserialport.h:44,
                 from /usr/include/x86_64-linux-gnu/qt5/QtSerialPort/QSerialPort:1,
                 from ../UI_Testing2/packet.h:4,
                 from moc_packet.cpp:9:
/usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h: In instantiation of ‘void QList<T>::node_copy(QList<T>::Node*, QList<T>::Node*, QList<T>::Node*) [with T = QString]’:
/usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:816:13:   required from ‘QList<T>::QList(const QList<T>&) [with T = QString]’
/usr/include/x86_64-linux-gnu/qt5/QtCore/qstringlist.h:105:67:   required from here
/usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:489:19: error: ‘memcpy’ was not declared in this scope
  489 |             memcpy(from, src, (to - from) * sizeof(Node));
      |             ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:489:19: note: ‘memcpy’ is defined in header ‘<cstring>’; did you forget to ‘#include <cstring>’?
make: *** [Makefile:444: packet.o] Error 1
make: *** [Makefile:456: moc_packet.o] Error 1
15:23:57: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project UI_Testing2 (kit: Unnamed)
When executing step "Make"
15:23:57: Elapsed time: 00:02.

[SGaist]

Which version of gcc did you install ?
What exactly did you install ?

[hazbody21]

@SGaist
All I installed is through the maintenance tool:

[ChrisW67]

@hazbody21 Are you attempting to cross-compile on Linux for Windows using MingW? If not, then the presence of the MingW header in this error message indicates that you have not started from a clean state.

If you take a Qt Creator project from a Windows environment to Linux you:

• Should take the C++ sources and resources and nothing else.
• Do not copy the Qt Creator blah.pro.user file. This is an environment-specific set of QtCreator settings related to the project that needs to be created in each environment.
• Do not copy any pre-compiled header, MOC generated header, or any other compilation output.

[hazbody21]

@ChrisW67
Thank you for replying.
No I'm not doing anything with windows. I'm aware mingw is wrong and tried deleting it but it seems it's not even there:

I have been using an example project that I created on windows ubuntu from the preset examples and still throws the same error. Here is the example application, I deleted blah.pro.user:

Afterwards I started qtcreator and opened the project, attempted to build, here are the first few issues:

here is part of the compile output:

2436 |     d->f.PrimitiveBoundingBox(minX, minY, minZ, minW, maxX, maxY, maxZ, maxW);
     |          ^~~~~~~~~~~~~~~~~~~~
../Qt/6.3.1/gcc_64/include/QtGui/qopenglextrafunctions.h: In member function ‘void QOpenGLExtraFunctions::glPushDebugGroup(GLenum, GLuint, GLsizei, const GLchar*)’:
../Qt/6.3.1/gcc_64/include/QtGui/qopenglextrafunctions.h:2444:10: error: ‘struct QOpenGLExtraFunctionsPrivate::Functions’ has no member named ‘PushDebugGroup’
2444 |     d->f.PushDebugGroup(source, id, length, message);
     |          ^~~~~~~~~~~~~~
../Qt/6.3.1/gcc_64/include/QtGui/qopenglextrafunctions.h: In member function ‘void QOpenGLExtraFunctions::glReadnPixels(GLint, GLint, GLsizei, GLsizei, GLenum, GLenum, GLsizei, void*)’:
../Qt/6.3.1/gcc_64/include/QtGui/qopenglextrafunctions.h:2452:10: error: ‘struct QOpenGLExtraFunctionsPrivate::Functions’ has no member named ‘ReadnPixels’
2452 |     d->f.ReadnPixels(x, y, width, height, format, type, bufSize, data);
     |          ^~~~~~~~~~~
../Qt/6.3.1/gcc_64/include/QtGui/qopenglextrafunctions.h: In member function ‘void QOpenGLExtraFunctions::glSamplerParameterIiv(GLuint, GLenum, const GLint*)’:
../Qt/6.3.1/gcc_64/include/QtGui/qopenglextrafunctions.h:2460:10: error: ‘struct QOpenGLExtraFunctionsPrivate::Functions’ has no member named ‘SamplerParameterIiv’
2460 |     d->f.SamplerParameterIiv(sampler, pname, param);
     |          ^~~~~~~~~~~~~~~~~~~
../Qt/6.3.1/gcc_64/include/QtGui/qopenglextrafunctions.h: In member function ‘void QOpenGLExtraFunctions::glSamplerParameterIuiv(GLuint, GLenum, const GLuint*)’:
../Qt/6.3.1/gcc_64/include/QtGui/qopenglextrafunctions.h:2468:10: error: ‘struct QOpenGLExtraFunctionsPrivate::Functions’ has no member named ‘SamplerParameterIuiv’
2468 |     d->f.SamplerParameterIuiv(sampler, pname, param);
     |          ^~~~~~~~~~~~~~~~~~~~
../Qt/6.3.1/gcc_64/include/QtGui/qopenglextrafunctions.h: In member function ‘void QOpenGLExtraFunctions::glTexBuffer(GLenum, GLenum, GLuint)’:
../Qt/6.3.1/gcc_64/include/QtGui/qopenglextrafunctions.h:2476:10: error: ‘struct QOpenGLExtraFunctionsPrivate::Functions’ has no member named ‘TexBuffer’
2476 |     d->f.TexBuffer(target, internalformat, buffer);
     |          ^~~~~~~~~
../Qt/6.3.1/gcc_64/include/QtGui/qopenglextrafunctions.h: In member function ‘void QOpenGLExtraFunctions::glTexBufferRange(GLenum, GLenum, GLuint, GLintptr, GLsizeiptr)’:
../Qt/6.3.1/gcc_64/include/QtGui/qopenglextrafunctions.h:2484:10: error: ‘struct QOpenGLExtraFunctionsPrivate::Functions’ has no member named ‘TexBufferRange’
2484 |     d->f.TexBufferRange(target, internalformat, buffer, offset, size);
     |          ^~~~~~~~~~~~~~
../Qt/6.3.1/gcc_64/include/QtGui/qopenglextrafunctions.h: In member function ‘void QOpenGLExtraFunctions::glTexParameterIiv(GLenum, GLenum, const GLint*)’:
../Qt/6.3.1/gcc_64/include/QtGui/qopenglextrafunctions.h:2492:10: error: ‘struct QOpenGLExtraFunctionsPrivate::Functions’ has no member named ‘TexParameterIiv’
2492 |     d->f.TexParameterIiv(target, pname, params);
     |          ^~~~~~~~~~~~~~~
../Qt/6.3.1/gcc_64/include/QtGui/qopenglextrafunctions.h: In member function ‘void QOpenGLExtraFunctions::glTexParameterIuiv(GLenum, GLenum, const GLuint*)’:
../Qt/6.3.1/gcc_64/include/QtGui/qopenglextrafunctions.h:2500:10: error: ‘struct QOpenGLExtraFunctionsPrivate::Functions’ has no member named ‘TexParameterIuiv’
2500 |     d->f.TexParameterIuiv(target, pname, params);
     |          ^~~~~~~~~~~~~~~~
../Qt/6.3.1/gcc_64/include/QtGui/qopenglextrafunctions.h: In member function ‘void QOpenGLExtraFunctions::glTexStorage3DMultisample(GLenum, GLsizei, GLenum, GLsizei, GLsizei, GLsizei, GLboolean)’:
../Qt/6.3.1/gcc_64/include/QtGui/qopenglextrafunctions.h:2508:10: error: ‘struct QOpenGLExtraFunctionsPrivate::Functions’ has no member named ‘TexStorage3DMultisample’
2508 |     d->f.TexStorage3DMultisample(target, samples, internalformat, width, height, depth, fixedsamplelocations);
     |          ^~~~~~~~~~~~~~~~~~~~~~~
../application/mainwindow.cpp: In constructor ‘MainWindow::MainWindow()’:
../application/mainwindow.cpp:73:22: error: ‘setFallbackSessionManagementEnabled’ is not a member of ‘QGuiApplication’
  73 |     QGuiApplication::setFallbackSessionManagementEnabled(false);
     |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../application/mainwindow.cpp: In member function ‘void MainWindow::readSettings()’:
../application/mainwindow.cpp:284:55: error: ‘desktop’ is not a member of ‘QApplication’
 284 |         const QRect availableGeometry = QApplication::desktop()->availableGeometry(this);
     |                                                       ^~~~~~~
In file included from ../Qt/6.3.1/gcc_64/include/QtCore/qnumeric.h:44,
                from ../Qt/6.3.1/gcc_64/include/QtCore/qglobal.h:1480,
                from ../Qt/6.3.1/gcc_64/include/QtCore/QtCore:4,
                from ../Qt/6.3.1/gcc_64/include/QtWidgets/QtWidgetsDepends:3,
                from ../Qt/6.3.1/gcc_64/include/QtWidgets/QtWidgets:3,
                from ../application/mainwindow.cpp:52:
/usr/include/c++/9/cmath: In instantiation of ‘_Tp std::__hypot3(_Tp, _Tp, _Tp) [with _Tp = double]’:
/usr/include/c++/9/cmath:1873:47:   required from here
/usr/include/c++/9/cmath:1860:24: error: call of overloaded ‘sqrt(double)’ is ambiguous
1860 |  return __a * std::sqrt((__x / __a) * (__x / __a)
     |               ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
1861 |           + (__y / __a) * (__y / __a)
     |           ~~~~~~~~~~~~~~~~~~~~~~~~~~~
1862 |           + (__z / __a) * (__z / __a));
     |           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/9/cmath:463:3: note: candidate: ‘constexpr float std::sqrt(float)’
 463 |   sqrt(float __x)
     |   ^~~~
/usr/include/c++/9/cmath:467:3: note: candidate: ‘constexpr long double std::sqrt(long double)’
 467 |   sqrt(long double __x)
     |   ^~~~
In file included from ../Qt/6.3.1/gcc_64/include/QtCore/qstring.h:56,
                from ../Qt/6.3.1/gcc_64/include/QtCore/qobject.h:47,
                from ../Qt/6.3.1/gcc_64/include/QtCore/qabstractanimation.h:43,
                from ../Qt/6.3.1/gcc_64/include/QtCore/QtCore:9,
                from ../Qt/6.3.1/gcc_64/include/QtWidgets/QtWidgetsDepends:3,
                from ../Qt/6.3.1/gcc_64/include/QtWidgets/QtWidgets:3,
                from ../application/mainwindow.cpp:52:
../Qt/6.3.1/gcc_64/include/QtCore/qanystringview.h: In instantiation of ‘constexpr QAnyStringView::QAnyStringView(const Char*, qsizetype) [with Char = char; typename std::enable_if<disjunction_v<QtPrivate::IsCompatibleCharType<Char>, std::disjunction<std::is_same<typename std::remove_cv<typename std::remove_reference<_Tp>::type>::type, char>, std::is_same<typename std::remove_cv<typename std::remove_reference<_Tp>::type>::type, unsigned char>, std::is_same<typename std::remove_cv<typename std::remove_reference<_Tp>::type>::type, signed char> > >, bool>::type <anonymous> = true; qsizetype = long long int]’:
../Qt/6.3.1/gcc_64/include/QtCore/qstring.h:1200:69:   required from here
../Qt/6.3.1/gcc_64/include/QtCore/qanystringview.h:140:34: warning: narrowing conversion of ‘QAnyStringView::encodeType<char>(((((len >= 0) ? (void)0 : qt_assert(((const char*)"len >= 0"), ((const char*)"../Qt/6.3.1/gcc_64/include/QtCore/qanystringview.h"), 140)), (((str != 0) || (len == 0)) ? (void)0 : qt_assert(((const char*)"str || !len"), ((const char*)"../Qt/6.3.1/gcc_64/include/QtCore/qanystringview.h"), 140))), len))’ from ‘std::size_t’ {aka ‘long unsigned int’} to ‘size_t’ {aka ‘unsigned int’} [-Wnarrowing]
 140 |           m_size{encodeType<Char>((Q_ASSERT(len >= 0), Q_ASSERT(str || !len), len))} {}
     |                  ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../Qt/6.3.1/gcc_64/include/QtCore/qcborstream.h:47,
                from ../Qt/6.3.1/gcc_64/include/QtCore/QtCore:44,
                from ../Qt/6.3.1/gcc_64/include/QtWidgets/QtWidgetsDepends:3,
                from ../Qt/6.3.1/gcc_64/include/QtWidgets/QtWidgets:3,
                from ../application/mainwindow.cpp:52:
../Qt/6.3.1/gcc_64/include/QtCore/qcborstreamreader.h: In instantiation of ‘FP QCborStreamReader::_toFloatingPoint() const [with FP = qfloat16]’:
../Qt/6.3.1/gcc_64/include/QtCore/qcborstreamreader.h:166:100:   required from here
../Qt/6.3.1/gcc_64/include/QtCore/qcborstreamreader.h:191:15: error: ‘memcpy’ was not declared in this scope
 191 |         memcpy(static_cast<void *>(&f), &u, sizeof(f));
     |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../Qt/6.3.1/gcc_64/include/QtCore/qcborstream.h:47,
                from ../Qt/6.3.1/gcc_64/include/QtCore/QtCore:44,
                from ../Qt/6.3.1/gcc_64/include/QtWidgets/QtWidgetsDepends:3,
                from ../Qt/6.3.1/gcc_64/include/QtWidgets/QtWidgets:3,
                from ../application/mainwindow.cpp:52:
../Qt/6.3.1/gcc_64/include/QtCore/qcborstreamreader.h:46:1: note: ‘memcpy’ is defined in header ‘<cstring>’; did you forget to ‘#include <cstring>’?
  45 | #include <QtCore/qfloat16.h>
 +++ |+#include <cstring>
  46 | #include <QtCore/qscopedpointer.h>
In file included from ../Qt/6.3.1/gcc_64/include/QtCore/qcborstream.h:47,
                from ../Qt/6.3.1/gcc_64/include/QtCore/QtCore:44,
                from ../Qt/6.3.1/gcc_64/include/QtWidgets/QtWidgetsDepends:3,
                from ../Qt/6.3.1/gcc_64/include/QtWidgets/QtWidgets:3,
                from ../application/mainwindow.cpp:52:
../Qt/6.3.1/gcc_64/include/QtCore/qcborstreamreader.h: In instantiation of ‘FP QCborStreamReader::_toFloatingPoint() const [with FP = float]’:
../Qt/6.3.1/gcc_64/include/QtCore/qcborstreamreader.h:167:95:   required from here
../Qt/6.3.1/gcc_64/include/QtCore/qcborstreamreader.h:191:15: error: ‘memcpy’ was not declared in this scope
 191 |         memcpy(static_cast<void *>(&f), &u, sizeof(f));
     |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../Qt/6.3.1/gcc_64/include/QtCore/qcborstreamreader.h:191:15: note: ‘memcpy’ is defined in header ‘<cstring>’; did you forget to ‘#include <cstring>’?
../Qt/6.3.1/gcc_64/include/QtCore/qcborstreamreader.h: In instantiation of ‘FP QCborStreamReader::_toFloatingPoint() const [with FP = double]’:
../Qt/6.3.1/gcc_64/include/QtCore/qcborstreamreader.h:168:97:   required from here
../Qt/6.3.1/gcc_64/include/QtCore/qcborstreamreader.h:191:15: error: ‘memcpy’ was not declared in this scope
../Qt/6.3.1/gcc_64/include/QtCore/qcborstreamreader.h:191:15: note: ‘memcpy’ is defined in header ‘<cstring>’; did you forget to ‘#include <cstring>’?
In file included from ../Qt/6.3.1/gcc_64/include/QtCore/QtCore:81,
                from ../Qt/6.3.1/gcc_64/include/QtWidgets/QtWidgetsDepends:3,
                from ../Qt/6.3.1/gcc_64/include/QtWidgets/QtWidgets:3,
                from ../application/mainwindow.cpp:52:
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h: In instantiation of ‘T qFromUnaligned(const void*) [with T = short unsigned int]’:
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:145:76:   required from ‘Float qbswapFloatHelper(Float) [with Float = qfloat16]’
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:152:36:   required from here
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:88:13: error: ‘memcpy’ was not declared in this scope
  86 |     memcpy
     |     ~~~~~~   
  87 | #endif
     | ~~~~~~       
  88 |             (&dest, src, size);
     |             ^~~~~~~~~~~~~~~~~~
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:88:13: note: ‘memcpy’ is defined in header ‘<cstring>’; did you forget to ‘#include <cstring>’?
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h: In instantiation of ‘T qFromUnaligned(const void*) [with T = qfloat16]’:
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:147:33:   required from ‘Float qbswapFloatHelper(Float) [with Float = qfloat16]’
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:152:36:   required from here
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:88:13: error: ‘memcpy’ was not declared in this scope
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:88:13: note: ‘memcpy’ is defined in header ‘<cstring>’; did you forget to ‘#include <cstring>’?
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h: In instantiation of ‘T qFromUnaligned(const void*) [with T = unsigned int]’:
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:145:76:   required from ‘Float qbswapFloatHelper(Float) [with Float = float]’
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:157:36:   required from here
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:88:13: error: ‘memcpy’ was not declared in this scope
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:88:13: note: ‘memcpy’ is defined in header ‘<cstring>’; did you forget to ‘#include <cstring>’?
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h: In instantiation of ‘T qFromUnaligned(const void*) [with T = float]’:
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:147:33:   required from ‘Float qbswapFloatHelper(Float) [with Float = float]’
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:157:36:   required from here
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:88:13: error: ‘memcpy’ was not declared in this scope
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:88:13: note: ‘memcpy’ is defined in header ‘<cstring>’; did you forget to ‘#include <cstring>’?
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h: In instantiation of ‘T qFromUnaligned(const void*) [with T = long long unsigned int]’:
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:145:76:   required from ‘Float qbswapFloatHelper(Float) [with Float = double]’
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:162:36:   required from here
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:88:13: error: ‘memcpy’ was not declared in this scope
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:88:13: note: ‘memcpy’ is defined in header ‘<cstring>’; did you forget to ‘#include <cstring>’?
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h: In instantiation of ‘T qFromUnaligned(const void*) [with T = double]’:
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:147:33:   required from ‘Float qbswapFloatHelper(Float) [with Float = double]’
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:162:36:   required from here
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:88:13: error: ‘memcpy’ was not declared in this scope
../Qt/6.3.1/gcc_64/include/QtCore/qendian.h:88:13: note: ‘memcpy’ is defined in header ‘<cstring>’; did you forget to ‘#include <cstring>’?
make: *** [Makefile:1388: mainwindow.o] Error 1
09:46:21: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project application (kit: Desktop Qt 6.3.1 GCC 64bit)
When executing step "Make"
09:46:21: Elapsed time: 00:13

[CPPUIX]

@hazbody21 said in Only Win32 target is supported! And QT Creator layout issue?:

I have been using an example project that I created on windows

Could you please try making a new clean project on your current OS and test with it instead? Just to remove all suspicion about imported settings.

[hazbody21]

@Abderrahmene_Rayene @ChrisW67
That was a typo my apologies. I created it with my current OS (Ubuntu 20.04.6 LTS)

[CPPUIX]

@hazbody21 From the errors, It doesn't look like this project you're testing with a clean project.

Could you confirm if the problem still occurs with a new clean project? Just to make sure whether the problem is about the project you're building, or your compiler.

[hazbody21]

@Abderrahmene_Rayene

Okay made a blank new project, qmake, qt widgets, here is the compile output:

11:19:17: Running steps for project clean...
11:19:17: Starting: "/home/crc/Qt/6.3.1/gcc_64/bin/qmake" /home/crc/clean/clean.pro -spec linux-g++ CONFIG+=debug CONFIG+=qml_debug
Info: creating stash file /home/crc/build-clean-Desktop_Qt_6_3_1_GCC_64bit-Debug/.qmake.stash
11:19:17: The process "/home/crc/Qt/6.3.1/gcc_64/bin/qmake" exited normally.
11:19:17: Starting: "/usr/bin/make" -f /home/crc/build-clean-Desktop_Qt_6_3_1_GCC_64bit-Debug/Makefile qmake_all
/home/crc/build-clean-Desktop_Qt_6_3_1_GCC_64bit-Debug/Makefile:541: warning: overriding recipe for target 'clean'
/home/crc/build-clean-Desktop_Qt_6_3_1_GCC_64bit-Debug/Makefile:217: warning: ignoring old recipe for target 'clean'
make: Nothing to be done for 'qmake_all'.
11:19:17: The process "/usr/bin/make" exited normally.
11:19:17: Starting: "/usr/bin/make" -j16
Makefile:541: warning: overriding recipe for target 'clean'
Makefile:217: warning: ignoring old recipe for target 'clean'
rm -f moc_predefs.h
rm -f moc_mainwindow.cpp
rm -f ui_mainwindow.h
/home/crc/Qt/6.3.1/gcc_64/libexec/uic ../clean/mainwindow.ui -o ui_mainwindow.h
g++ -c -pipe -g -std=gnu++1z -Wall -Wextra -D_REENTRANT -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../clean -I. -I../Qt/6.3.1/gcc_64/include -I../Qt/6.3.1/gcc_64/include/QtWidgets -I../Qt/6.3.1/gcc_64/include/QtGui -I../Qt/6.3.1/gcc_64/include/QtCore -I. -I. -I../Qt/6.3.1/gcc_64/mkspecs/linux-g++ -o main.o ../clean/main.cpp
g++ -pipe -g -std=gnu++1z -Wall -Wextra -dM -E -o moc_predefs.h ../Qt/6.3.1/gcc_64/mkspecs/features/data/dummy.cpp
g++ -c -pipe -g -std=gnu++1z -Wall -Wextra -D_REENTRANT -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../clean -I. -I../Qt/6.3.1/gcc_64/include -I../Qt/6.3.1/gcc_64/include/QtWidgets -I../Qt/6.3.1/gcc_64/include/QtGui -I../Qt/6.3.1/gcc_64/include/QtCore -I. -I. -I../Qt/6.3.1/gcc_64/mkspecs/linux-g++ -o mainwindow.o ../clean/mainwindow.cpp
/home/crc/Qt/6.3.1/gcc_64/libexec/moc -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB --include /home/crc/build-clean-Desktop_Qt_6_3_1_GCC_64bit-Debug/moc_predefs.h -I/home/crc/Qt/6.3.1/gcc_64/mkspecs/linux-g++ -I/home/crc/clean -I/home/crc/Qt/6.3.1/gcc_64/include -I/home/crc/Qt/6.3.1/gcc_64/include/QtWidgets -I/home/crc/Qt/6.3.1/gcc_64/include/QtGui -I/home/crc/Qt/6.3.1/gcc_64/include/QtCore -I. -I/usr/include/c++/9 -I/usr/include/x86_64-linux-gnu/c++/9 -I/usr/include/c++/9/backward -I/usr/lib/gcc/x86_64-linux-gnu/9/include -I/usr/local/include -I/usr/include/x86_64-linux-gnu -I/usr/include ../clean/mainwindow.h -o moc_mainwindow.cpp
In file included from /usr/include/c++/9/cwchar:44,
                 from /usr/include/c++/9/bits/postypes.h:40,
                 from /usr/include/c++/9/bits/char_traits.h:40,
                 from /usr/include/c++/9/string:40,
                 from /usr/include/c++/9/stdexcept:39,
                 from /usr/include/c++/9/optional:38,
                 from ../Qt/6.3.1/gcc_64/include/QtCore/qtypeinfo.h:44,
                 from ../Qt/6.3.1/gcc_64/include/QtCore/qglobal.h:1472,
                 from ../Qt/6.3.1/gcc_64/include/QtGui/qtguiglobal.h:43,
                 from ../Qt/6.3.1/gcc_64/include/QtWidgets/qtwidgetsglobal.h:43,
                 from ../Qt/6.3.1/gcc_64/include/QtWidgets/qmainwindow.h:43,
                 from ../Qt/6.3.1/gcc_64/include/QtWidgets/QMainWindow:1,
                 from ../clean/mainwindow.h:4,
                 from ../clean/main.cpp:1:
/usr/include/wchar.h:10:10: fatal error: _mingw_print_push.h: No such file or directory
   10 | #include <_mingw_print_push.h>
      |          ^~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/9/cwchar:44,
                 from /usr/include/c++/9/bits/postypes.h:40,
                 from /usr/include/c++/9/bits/char_traits.h:40,
                 from /usr/include/c++/9/string:40,
                 from /usr/include/c++/9/stdexcept:39,
                 from /usr/include/c++/9/optional:38,
                 from ../Qt/6.3.1/gcc_64/include/QtCore/qtypeinfo.h:44,
                 from ../Qt/6.3.1/gcc_64/include/QtCore/qglobal.h:1472,
                 from ../Qt/6.3.1/gcc_64/include/QtGui/qtguiglobal.h:43,
                 from ../Qt/6.3.1/gcc_64/include/QtWidgets/qtwidgetsglobal.h:43,
                 from ../Qt/6.3.1/gcc_64/include/QtWidgets/qmainwindow.h:43,
                 from ../Qt/6.3.1/gcc_64/include/QtWidgets/QMainWindow:1,
                 from ../clean/mainwindow.h:4,
                 from ../clean/mainwindow.cpp:1:
/usr/include/wchar.h:10:10: fatal error: _mingw_print_push.h: No such file or directory
   10 | #include <_mingw_print_push.h>
      |          ^~~~~~~~~~~~~~~~~~~~~
compilation terminated.
compilation terminated.
make: *** [Makefile:1026: mainwindow.o] Error 1
make: *** Waiting for unfinished jobs....
make: *** [Makefile:888: main.o] Error 1
11:19:17: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project clean (kit: Desktop Qt 6.3.1 GCC 64bit)
When executing step "Make"
11:19:17: Elapsed time: 00:00.

[Christian Ehrlicher]

@hazbody21 said in Only Win32 target is supported! And QT Creator layout issue?:

10 | #include <_mingw_print_push.h>

As you can see your system is still screwed up. Re-install the compiler toolchain and all what depends on it so the correct headers are in /usr/include

[hazbody21]

@Christian-Ehrlicher
I've removed the desktop gcc shown below through the maintenance tool, rebooted, then installed it again. Not sure where else I could've reinstalled.

Compile output:

12:26:52: Running steps for project cleanproj...
12:26:52: Configuration unchanged, skipping qmake step.
12:26:53: Starting: "/usr/bin/make" -j16
g++ -c -pipe -g -std=gnu++1z -Wall -Wextra -D_REENTRANT -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../cleanproj -I. -I../Qt/6.3.1/gcc_64/include -I../Qt/6.3.1/gcc_64/include/QtWidgets -I../Qt/6.3.1/gcc_64/include/QtGui -I../Qt/6.3.1/gcc_64/include/QtCore -I. -I. -I../Qt/6.3.1/gcc_64/mkspecs/linux-g++ -o main.o ../cleanproj/main.cpp
g++ -c -pipe -g -std=gnu++1z -Wall -Wextra -D_REENTRANT -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../cleanproj -I. -I../Qt/6.3.1/gcc_64/include -I../Qt/6.3.1/gcc_64/include/QtWidgets -I../Qt/6.3.1/gcc_64/include/QtGui -I../Qt/6.3.1/gcc_64/include/QtCore -I. -I. -I../Qt/6.3.1/gcc_64/mkspecs/linux-g++ -o mainwindow.o ../cleanproj/mainwindow.cpp
g++ -c -pipe -g -std=gnu++1z -Wall -Wextra -D_REENTRANT -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../cleanproj -I. -I../Qt/6.3.1/gcc_64/include -I../Qt/6.3.1/gcc_64/include/QtWidgets -I../Qt/6.3.1/gcc_64/include/QtGui -I../Qt/6.3.1/gcc_64/include/QtCore -I. -I. -I../Qt/6.3.1/gcc_64/mkspecs/linux-g++ -o moc_mainwindow.o moc_mainwindow.cpp
In file included from /usr/include/c++/9/cwchar:44,
                 from /usr/include/c++/9/bits/postypes.h:40,
                 from /usr/include/c++/9/iosfwd:40,
                 from /usr/include/c++/9/memory:72,
                 from moc_mainwindow.cpp:9:
/usr/include/wchar.h:10:10: fatal error: _mingw_print_push.h: No such file or directory
   10 | #include <_mingw_print_push.h>
      |          ^~~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from /usr/include/c++/9/cwchar:44,
                 from /usr/include/c++/9/bits/postypes.h:40,
                 from /usr/include/c++/9/bits/char_traits.h:40,
                 from /usr/include/c++/9/string:40,
                 from /usr/include/c++/9/stdexcept:39,
                 from /usr/include/c++/9/optional:38,
                 from ../Qt/6.3.1/gcc_64/include/QtCore/qtypeinfo.h:44,
                 from ../Qt/6.3.1/gcc_64/include/QtCore/qglobal.h:1472,
                 from ../Qt/6.3.1/gcc_64/include/QtGui/qtguiglobal.h:43,
                 from ../Qt/6.3.1/gcc_64/include/QtWidgets/qtwidgetsglobal.h:43,
                 from ../Qt/6.3.1/gcc_64/include/QtWidgets/qmainwindow.h:43,
                 from ../Qt/6.3.1/gcc_64/include/QtWidgets/QMainWindow:1,
                 from ../cleanproj/mainwindow.h:4,
                 from ../cleanproj/main.cpp:1:
/usr/include/wchar.h:10:10: fatal error: _mingw_print_push.h: No such file or directory
   10 | #include <_mingw_print_push.h>
      |          ^~~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from /usr/include/c++/9/cwchar:44,
                 from /usr/include/c++/9/bits/postypes.h:40,
                 from /usr/include/c++/9/bits/char_traits.h:40,
                 from /usr/include/c++/9/string:40,
                 from /usr/include/c++/9/stdexcept:39,
                 from /usr/include/c++/9/optional:38,
                 from ../Qt/6.3.1/gcc_64/include/QtCore/qtypeinfo.h:44,
                 from ../Qt/6.3.1/gcc_64/include/QtCore/qglobal.h:1472,
                 from ../Qt/6.3.1/gcc_64/include/QtGui/qtguiglobal.h:43,
                 from ../Qt/6.3.1/gcc_64/include/QtWidgets/qtwidgetsglobal.h:43,
                 from ../Qt/6.3.1/gcc_64/include/QtWidgets/qmainwindow.h:43,
                 from ../Qt/6.3.1/gcc_64/include/QtWidgets/QMainWindow:1,
                 from ../cleanproj/mainwindow.h:4,
                 from ../cleanproj/mainwindow.cpp:1:
/usr/include/wchar.h:10:10: fatal error: _mingw_print_push.h: No such file or directory
   10 | #include <_mingw_print_push.h>
      |          ^~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make: *** [Makefile:888: main.o] Error 1
make: *** Waiting for unfinished jobs....
make: *** [Makefile:1029: moc_mainwindow.o] Error 1
make: *** [Makefile:1026: mainwindow.o] Error 1
12:26:53: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project cleanproj (kit: Desktop Qt 6.3.1 GCC 64bit)
When executing step "Make"
12:26:53: Elapsed time: 00:00.

[Christian Ehrlicher]

@hazbody21 said in Only Win32 target is supported! And QT Creator layout issue?:

I've removed the desktop gcc shown below through the maintenance tool, rebooted, then installed it again. Not sure where else I could've reinstalled.

The Qt installer will not fix your system installation nor install anything in there.
Your complete system is broken - you can't even compile a simple application on the commmand line as soon as you include wchar.h

There is nothing Qt nor a Qt installer can do here. It doesn't even created this.

[CPPUIX]

@hazbody21 Try running this command:

sudo apt-get install --reinstall build-essentials