<![CDATA[Creator error but command line works.]]>I have the following issues:
/home/brad/Qt/6.11.1/gcc_64/include/QtCore/qglobal.h:14: error: 'type_traits' file not found

Although when I make on the command line the project builds fine.
$ brad@Inspiron-5567:~/Qt/projects/test-qt/build/Desktop_Qt_6_11_1_Debug$ /home/brad/Qt/6.11.1/gcc_64/bin/qmake ../../test-qt.pro
brad@Inspiron-5567:~/Qt/projects/test-qt/build/Desktop_Qt_6_11_1_Debug
$ make
$ ls -l test-qy
-rwxrwxr-x 1 brad brad 32336 Jul 19 19:37 test-qt

Which runs fine. I think some subtle configuration is missing, but I can't see it. Please help

]]>https://forum.qt.io/topic/164902/creator-error-but-command-line-works.RSS for NodeMon, 31 Aug 2026 07:58:02 GMTSun, 19 Jul 2026 18:48:25 GMT60<![CDATA[Reply to Creator error but command line works. on Tue, 21 Jul 2026 09:53:10 GMT]]>@oldbrad said in Creator error but command line works.:

The moral of this tail is you can NOT install over a Linux package manager installation.

Glad you found a solution but the rule is: you shall not install a custom build of a library, whether Qt or another one, over a distribution provided one. You could break your system doing that.

However, nothing should prevent them from being properly co-located and used independently by your application.

]]>https://forum.qt.io/post/839279https://forum.qt.io/post/839279Tue, 21 Jul 2026 09:53:10 GMT<![CDATA[Reply to Creator error but command line works. on Tue, 21 Jul 2026 09:47:10 GMT]]>Followed this:
@aha_1980 said in Creator error but command line works.:

@oldbrad I think @SGaist meant check. Preferences > Kits and there you have several settings for compiler, Qt version etc.

I did something, not exactly sure what, which has FIXED the problem.. I think two things:
1st Disabled package manager installed qmake
2nd Did Re-detect compilers

Magically the actual change is in the generated Makefile. CC form clang to gcc and CXX from clang++ to g++

The moral of this tail is you can NOT install over a Linux package manager installation.

Thanks for the help.
Regards oldbrad (still a beginner after 60 years ;-)

]]>https://forum.qt.io/post/839277https://forum.qt.io/post/839277Tue, 21 Jul 2026 09:47:10 GMT<![CDATA[Reply to Creator error but command line works. on Tue, 21 Jul 2026 05:40:15 GMT]]>@oldbrad I think @SGaist meant check. Preferences > Kits and there you have several settings for compiler, Qt version etc.

Regards

]]>https://forum.qt.io/post/839257https://forum.qt.io/post/839257Tue, 21 Jul 2026 05:40:15 GMT<![CDATA[Reply to Creator error but command line works. on Mon, 20 Jul 2026 22:57:52 GMT]]>I do not understand your question. Did I already ?

]]>https://forum.qt.io/post/839254https://forum.qt.io/post/839254Mon, 20 Jul 2026 22:57:52 GMT<![CDATA[Reply to Creator error but command line works. on Sun, 19 Jul 2026 21:01:50 GMT]]>Hi and welcome to devnet,

Did you already your kit configuration in Qt Creator ?

]]>https://forum.qt.io/post/839226https://forum.qt.io/post/839226Sun, 19 Jul 2026 21:01:50 GMT