[SOLVED] qtCreator doesn't build my project since I update to Mountain Lion

rikytres

I'm gonna try! ;)

rikytres

Sorry, I'm not very expert... I can't find the path for the g++ compiler in the mac directory...
Do you know where I can find it?

rikytres

I found the problem!
Updating the Os, the g++ and the gcc command (and all other command came from Xcode) was deleted.
Now I'm re-installing Xcode suit and then I will test again if qtCreator works.

Fingers crossed!!

tobias.hunger

G++ might have been removed in favor of clang/clang++, or for g++-4.x or something similar. Sorry, I don't have a mac available here so I can't check.

rikytres

In /usr/bin i can't find any file that contain "g++", "clang" or "gcc" in the name.
I think the problem will be resolved only with re-installing xcode...

I'm download it and in a few minutes i will do it... ;)

rikytres

Ok... I failed again...
I found out the g++ and gcc comand in /Developer/usr/bin/ and i set they as manual in tool chains.
I set "Compiler path" as /Developer/usr/bin/g++ and "Debugger" as /Developer/usr/bin/g++ too... Is it correct?

tobias.hunger

No, the debugger is called gdb. It will most likely be in the same directory as g++.

rikytres

And then is somethig like this?
Compiler path: /Developer/usr/bin/g++
Debugger: /Developer/usr/bin/gdb

right?

rikytres

I done it and now qtCreator can find the compiler.

But now I have an other problem... The compiler can't find the "basics" libraries like <iostream> or <string>.

I don't know what i can do...

This is the compile output log:

08:36:40: Running build steps for project CalcolatriceSensibile...
08:36:40: Configuration unchanged, skipping qmake step.
08:36:40: Starting: "/Developer/usr/bin/make" -w
make: Entering directory /Users/TresMac/Developing Project/C++/CalcolatriceSensibile-build-desktop-Desktop_Qt_4_7_4_for_GCC__Qt_SDK__Debug' g++ -c -pipe -g -gdwarf-2 -arch x86_64 -Xarch_x86_64 -mmacosx-version-min=10.5 -Wall -W -DQT_GUI_LIB -DQT_CORE_LIB -I../../../QtSDK/Desktop/Qt/474/gcc/mkspecs/macx-g++ -I../CalcolatriceSensibile -I../../../QtSDK/Desktop/Qt/474/gcc/lib/QtCore.framework/Versions/4/Headers -I../../../QtSDK/Desktop/Qt/474/gcc/include/QtCore -I../../../QtSDK/Desktop/Qt/474/gcc/lib/QtGui.framework/Versions/4/Headers -I../../../QtSDK/Desktop/Qt/474/gcc/include/QtGui -I../../../QtSDK/Desktop/Qt/474/gcc/include -I. -I. -I../CalcolatriceSensibile -I. -F/Users/TresMac/QtSDK/Desktop/Qt/474/gcc/lib -o mainTest.o ../CalcolatriceSensibile/mainTest.cpp In file included from ../CalcolatriceSensibile/logic/point.h:5, from ../CalcolatriceSensibile/mainTest.cpp:2: ../CalcolatriceSensibile/logic/function.h:4:17: error: string: No such file or directory In file included from ../CalcolatriceSensibile/mainTest.cpp:5: ../CalcolatriceSensibile/logic/utilities.h:7:18: error: sstream: No such file or directory ../CalcolatriceSensibile/mainTest.cpp:8:19: error: iostream: No such file or directory In file included from ../CalcolatriceSensibile/logic/point.h:5, from ../CalcolatriceSensibile/mainTest.cpp:2: ../CalcolatriceSensibile/logic/function.h:16: error: 'string' in namespace 'std' does not name a type In file included from ../CalcolatriceSensibile/mainTest.cpp:2: ../CalcolatriceSensibile/logic/point.h:19: error: 'string' in namespace 'std' does not name a type In file included from ../CalcolatriceSensibile/logic/line.h:6, from ../CalcolatriceSensibile/mainTest.cpp:3: ../CalcolatriceSensibile/logic/triangle.h:16: error: 'string' in namespace 'std' does not name a type In file included from ../CalcolatriceSensibile/mainTest.cpp:5: ../CalcolatriceSensibile/logic/utilities.h:17: error: expected constructor, destructor, or type conversion before 'toString' ../CalcolatriceSensibile/mainTest.cpp:10: error: 'std::cout' has not been declared ../CalcolatriceSensibile/mainTest.cpp: In function 'int main()': ../CalcolatriceSensibile/mainTest.cpp:15: error: 'cout' was not declared in this scope ../CalcolatriceSensibile/mainTest.cpp:16: error: 'class function' has no member named 'getExpression' ../CalcolatriceSensibile/mainTest.cpp:26: error: 'endl' is not a member of 'std' make: *** [mainTest.o] Error 1 make: Leaving directory /Users/TresMac/Developing Project/C++/CalcolatriceSensibile-build-desktop-Desktop_Qt_4_7_4_for_GCC__Qt_SDK__Debug'
08:36:40: The process "/Developer/usr/bin/make" exited with code 2.
Error while building project CalcolatriceSensibile (target: Desktop)
When executing build step 'Make'

sfilippidis

DISCLAIMER: use at your own risk and don't blame me if this procedure deletes precious files from your machine etc! :-)

Let me tell you what I did when updating from Snow Leopard to Mountain Lion:

Uninstalled Qt SDK using the respective option at SDK's updater.
Installed the latest XCode from Mac App Store.
From XCode, from the menu XCode --> Preferences --> Downloads, I downloaded Command Line Tools.
I reinstalled Qt SDK.

rikytres

I decided to do what you suggested... but i start from download last version of Xcode and then download the command line tools...

Then I deleted the QtSDK and I'm gonna to re-install it...

rikytres

The situation start to be very stressful... -_-
I reinstalled QtCreator, and now QtCreator can see all the compiler.

But...
when I open my project and compile it the compiler return me the follow errors...

../CalcolatriceSensibile/mainTest.cpp: In instantiation of 'std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>]':
../CalcolatriceSensibile/mainTest.cpp:16: instantiated from here
../CalcolatriceSensibile/mainTest.cpp:16: error: explicit instantiation of 'std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>]' but no definition available
../CalcolatriceSensibile/mainTest.cpp: In instantiation of 'std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>]':
../CalcolatriceSensibile/mainTest.cpp:16: instantiated from here
../CalcolatriceSensibile/mainTest.cpp:16: error: explicit instantiation of 'std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>]' but no definition available
../CalcolatriceSensibile/mainTest.cpp: In instantiation of 'std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>]':
../CalcolatriceSensibile/mainTest.cpp:16: instantiated from here
../CalcolatriceSensibile/mainTest.cpp:16: error: explicit instantiation of 'std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>]' but no definition available
make: *** [mainTest.o] Error 1

I can't understand why this error...

rikytres

In particular the compiler give this error three times at the same row's code...

/Users/TresMac/Developing Project/C++/CalcolatriceSensibile-build-desktop-Desktop_Qt_4_7_4_for_GCC__Qt_SDK__Debug/../CalcolatriceSensibile/mainTest.cpp:16: error: explicit instantiation of 'std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>]' but no definition available

rikytres

I found that tis problem come out when i use the operator << with cout on a std:.string variable.

For exemple this code give mi problems:
@#include<string>
#include<iostream>
std::string exemple = "exemple";
std::cout<<exemple;@

zetavision

I have the same operator << problem. Does Anyone know how to solve it?

garrgravarr

Yes!!

I had the same problem with the
"explicit instantiation of 'std:basic_ostream<..'"

I tried out the flags that Qt used to compile a simple main routine. Seems it works if you say
-mmacosx-version-min=10.7
instead of
-mmacosx-version-min=10.5

There are no sdks for 10.5 or 10.6 on Mountain Lion and XCode 4.4!

Hope that helped.

cheers,

tim

garrgravarr

btw, the entries with

-mmacosx-version-min=10.5

can be found in

$QTDIR/mkspecs/common/g++-macx.conf

.

cheers again...

zetavision

Great! I just found that conf. It works now. Thanks a lot. :)

rikytres

Perfect!! Now it works!!
Thanks a lot!

gosuperninja

Changing the mkspec file to -mmacosx-version-min=10.5 worked for me.

This one was real obscure. Does anyone have reason why this would break std iostream functions? At first I thought it was change in the gcc version with Mountain Lion.

Also, this appears to only effect gcc. Clang doesn't seem to have a problem with min-version is seto to 10.5