<![CDATA[What might be causing the errors reported here?]]>I was making some adjustments, in another subproject, when I suddenly noticed that the subproject that involves UI development started to crash without me even messing with anything in it.

I created a new project from scratch to check if there was any relationship with my project settings, and even the new project also has the same error:

teste.h:12:5: error: incomplete result type 'QString' in function definition
qobjectdefs.h:182:5: note: expanded from macro 'Q_OBJECT'
qobjectdefs.h:140:27: note: expanded from macro 'QT_TR_FUNCTIONS'
qglobal.h:768:7: note: forward declaration of 'QString'

teste.h:12:5: error: calling 'tr' with incomplete return type 'QString'
qobjectdefs.h:182:5: note: expanded from macro 'Q_OBJECT'
qobjectdefs.h:141:35: note: expanded from macro 'QT_TR_FUNCTIONS'
qobjectdefs.h:348:13: note: 'tr' declared here
qglobal.h:768:7: note: forward declaration of 'QString'

teste.h:12:5: error: incomplete result type 'QString' in function definition
qobjectdefs.h:182:5: note: expanded from macro 'Q_OBJECT'
qobjectdefs.h:142:41: note: expanded from macro 'QT_TR_FUNCTIONS'
qglobal.h:768:7: note: forward declaration of 'QString'

teste.h:12:5: error: incomplete result type 'QString' in function definition
qobjectdefs.h:182:5: note: expanded from macro 'Q_OBJECT'
qobjectdefs.h:142:41: note: expanded from macro 'QT_TR_FUNCTIONS'
qglobal.h:768:7: note: forward declaration of 'QString'

teste.h:12:5: error: calling 'tr' with incomplete return type 'QString'
qobjectdefs.h:182:5: note: expanded from macro 'Q_OBJECT'
qobjectdefs.h:143:35: note: expanded from macro 'QT_TR_FUNCTIONS'
qobjectdefs.h:348:13: note: 'tr' declared here
qglobal.h:768:7: note: forward declaration of 'QString'

How to fix such problem?

]]>https://forum.qt.io/topic/129786/what-might-be-causing-the-errors-reported-hereRSS for NodeWed, 23 Sep 2026 00:22:13 GMTThu, 26 Aug 2021 15:50:01 GMT60<![CDATA[Reply to What might be causing the errors reported here? on Thu, 26 Aug 2021 16:15:15 GMT]]>add
#include <QString>
in test.h

]]>https://forum.qt.io/post/677952https://forum.qt.io/post/677952Thu, 26 Aug 2021 16:15:15 GMT<![CDATA[Reply to What might be causing the errors reported here? on Thu, 26 Aug 2021 16:16:08 GMT]]>@Carlos-Delfino said in What might be causing the errors reported here?:

teste.h:12:5: error: incomplete result type 'QString' in function definition

Show at least up to line #12 of teste.h where this error comes from. We should see what lines precede it. I believe teste.h is your own file, not Qt's? We also need to see where you include teste.h into your .cpp/.hfile, again to see the lines which precede it. Looks like you have included <QString> where it's needed.

]]>https://forum.qt.io/post/677951https://forum.qt.io/post/677951Thu, 26 Aug 2021 16:16:08 GMT