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

rikytres

Last evening I updated my mac to last MacOs, Mountain Lion, and now I'm trying to build my project, that until last evening worked.

When I try to run it, qtCreator reports this: "Qt Creator needs a tool chain set up to build. Configure a tool chain in Project mode"

I "found this page":https://bugreports.qt-project.org/browse/QTBUG-26230?page=com.atlassian.jira.plugin.system.issuetabpanels:changehistory-tabpanel here on this forum and I can't understand if my problem is generatetd by this bug, or if I have to setup better the settings.

tobias.hunger

Do you have compilers installed (AFAIK those come with XCode)?

Maybe it is just the auto-detection of tool chains that fails. You will need to manually set some up in Tools->Options->Build & Run->Tool Chains.

I would appreciate if you could report back which gcc/clangs are installed in mountain lion.

rikytres

I have XCode and then i should have all compilers that comes with its.

I have take a screenshot of my setting of "tool chains". !http://s7.postimage.org/4htmdvrij/qt_Creator_Screen.png()!
As you can see the the auto-detection found a "Maemo GCC" that works, but the qtVersion tab have some problem...
!http://s7.postimage.org/tp4ie4umj/qt_Creator_Screen1.png()!
May be this the problem?

tobias.hunger

Maemo GCC is used to build for Harmattan devices, so that can not be used for Mac binaries. So if you really have XCode installed, then the auto detection of the tool chains needed to build for Mac is failing.

Try searching for binaries starting with g++, gcc or clang and add them as a manual tool chains.

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