Compile error for Qt Designer Plugin

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usbhub
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Compile error for Qt Designer Plugin

Post by usbhub » Wed Mar 25, 2020 8:04 pm

Hello,
I'm trying to build the QtDesigner plugin to create a settings page. I downloaded the FreeCAD source repo and ran qmake plugin.pro, but if I try to run make, it fails:

Code: Select all

otto@CELSIUS-M470-2:~/Dokumente/FreeCAD/src/Tools/plugins/widget$ qmake plugin.pro
otto@CELSIUS-M470-2:~/Dokumente/FreeCAD/src/Tools/plugins/widget$ make
g++ -c -m64 -pipe -O2 -D_REENTRANT -Wall -W -fPIC -DQT_NO_DEBUG -DQT_PLUGIN -DQT_SCRIPT_LIB -DQT_XML_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQDESIGNER_EXPORT_WIDGETS -I/usr/share/qt4/mkspecs/linux-g++-64 -I. -I/usr/include/qt4/QtDesigner -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtXml -I/usr/include/qt4/QtScript -I/usr/include/qt4 -I. -I. -o customwidgets.o customwidgets.cpp
customwidgets.cpp:24:10: fatal error: QtGui: Datei oder Verzeichnis nicht gefunden
 #include <QtGui>
          ^~~~~~~
compilation terminated.
Makefile:223: recipe for target 'customwidgets.o' failed
make: *** [customwidgets.o] Error 1
How can I say make, where QtGui is?
wmayer
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Re: Compile error for Qt Designer Plugin

Post by wmayer » Wed Mar 25, 2020 9:07 pm

QtGui is a file inside the QtGui directory of the Qt headers. Have a look at the generated Makefile and the list of include paths.
vocx
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Re: Compile error for Qt Designer Plugin

Post by vocx » Wed Mar 25, 2020 9:42 pm

usbhub wrote:
Wed Mar 25, 2020 8:04 pm

Code: Select all

otto@CELSIUS-M470-2:~/Dokumente/FreeCAD/src/Tools/plugins/widget$ qmake plugin.pro
Running just qmake may run the Qt4 version.

If you are compiling for Qt5, as the majority would do, you need to make sure you are using the Qt5 version.

Code: Select all

cd freecad-source/src/Tools/plugins/widget
/usr/lib/x86_64-linux-gnu/qt5/bin/qmake plugin.pro
make
Compile_on_Linux
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usbhub
Posts: 280
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Re: Compile error for Qt Designer Plugin

Post by usbhub » Fri Mar 27, 2020 10:56 pm

wmayer wrote:
Wed Mar 25, 2020 9:07 pm
QtGui is a file inside the QtGui directory of the Qt headers. Have a look at the generated Makefile and the list of include paths.
You mean this, right?

Code: Select all

INCPATH       = -I/usr/share/qt4/mkspecs/linux-g++-64 -I. -I/usr/include/qt4/QtDesigner -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtXml -I/usr/include/qt4/QtScript -I/usr/include/qt4 -I. -I.
Honestly, I don't really understand the Makefile, but for me "-I/usr/include/qt4/QtGui" looks like QtGui is included.

@vocx
Oh, right, I forgot. But the error is still there wit Qt5.
usbhub
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Re: Compile error for Qt Designer Plugin

Post by usbhub » Wed Apr 08, 2020 8:49 pm

Bump :)

Any information missing?
wmayer
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Re: Compile error for Qt Designer Plugin

Post by wmayer » Thu Apr 09, 2020 8:24 am

Independent of whether Qt4 or Qt5 is used you have the following include paths:
INCPATH = -I/usr/share/qt4/mkspecs/linux-g++-64 -I. -I/usr/include/qt4/QtDesigner -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtXml -I/usr/include/qt4/QtScript -I/usr/include/qt4 -I. -I.
Now the compiler tells you that QtGui cannot be found. Does the directory /usr/include/qt4/QtGui actually exist and if yes does it include the file QtGui?

Btw, it would be helpful to tell us which OS exactly you are using.
usbhub
Posts: 280
Joined: Tue Apr 02, 2019 8:22 pm
Location: Earth

Re: Compile error for Qt Designer Plugin

Post by usbhub » Fri Apr 10, 2020 11:04 pm

wmayer wrote:
Thu Apr 09, 2020 8:24 am
Independent of whether Qt4 or Qt5 is used you have the following include paths:
INCPATH = -I/usr/share/qt4/mkspecs/linux-g++-64 -I. -I/usr/include/qt4/QtDesigner -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtXml -I/usr/include/qt4/QtScript -I/usr/include/qt4 -I. -I.
Now the compiler tells you that QtGui cannot be found. Does the directory /usr/include/qt4/QtGui actually exist and if yes does it include the file QtGui?

Btw, it would be helpful to tell us which OS exactly you are using.
The folder /usr/include/qtXX didn't existed, so I installed all packages beginning with qt4, now it works :)
Now I will try to do it for qt5.

Thanks for your help!

PS: Just for completeness:
OS: Linux Mint 19 Cinnamon
vocx
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Re: Compile error for Qt Designer Plugin

Post by vocx » Sat Apr 11, 2020 3:18 pm

usbhub wrote:
Fri Apr 10, 2020 11:04 pm
...
The folder /usr/include/qtXX didn't existed, so I installed all packages beginning with qt4, now it works :)
Now I will try to do it for qt5.
Are you even following the compiling information? Compile on Linux tells you which dependencies you need to install for Debian/Ubuntu based distributions.
Always add the important information to your posts if you need help.
To support the documentation effort, and code development, your donation is appreciated: paypal.
usbhub
Posts: 280
Joined: Tue Apr 02, 2019 8:22 pm
Location: Earth

Re: Compile error for Qt Designer Plugin

Post by usbhub » Tue Apr 14, 2020 4:52 pm

vocx wrote:
Sat Apr 11, 2020 3:18 pm
usbhub wrote:
Fri Apr 10, 2020 11:04 pm
...
The folder /usr/include/qtXX didn't existed, so I installed all packages beginning with qt4, now it works :)
Now I will try to do it for qt5.
Are you even following the compiling information? Compile on Linux tells you which dependencies you need to install for Debian/Ubuntu based distributions.
Yes, that would be a very good idea…
For QT5 it worked "out of the box" after installing the dependencies :)

Thank you very much!
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