Running a app - Error
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Hello guys! After i config my app to release and make, i pass my app to my friend to run, and this error appears: ./Pandora: symbol lookup error: ./Pandora: undefined symbol: _ZN13QOpenGLWidgetC1EP7QWidget6QFlagsIN2Qt10WindowTypeEE
Why this happens? Thanks
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Hi,
@Lays147 said:
./Pandora: symbol lookup error: ./Pandora: undefined symbol: _ZN13QOpenGLWidgetC1EP7QWidget6QFlagsIN2Qt10WindowTypeEE
Why this happens?
Your friend's app is loading the wrong version of
libQt5Widgets.so.5.- Did you give your friend a copy of your *.so.5 files?
- Did you change the app's RPATH like I suggested in this thread?
If you did these two steps correctly, your friend's app will not show this error message.
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@JKSH Well, i copied all files .so.5 to this folder qtfiles then i did the comands:
lays@lays:~$ cd PandoraRun/
lays@lays:~/PandoraRun$ chrpath -r ./qtlibs Pandora
Pandora: RPATH=$ORIGIN
Pandora: new RPATH: ./qtlibs
lays@lays:~/PandoraRun$And sent the code to my friend, he run and occurred segmentation fault.
How do I fix it? -
@Lays147 said:
lays@lays:~/PandoraRun$ chrpath -r ./qtlibs Pandora
That won't work, because it sets the RPATH to
/home/lays/PandoraRun/qtlibs/. If you do this, your friend will need to create a directory called/home/lays/PandoraRun/qtlibs/on his computer and put the Qt libraries there.-
Please read the tutorial I gave you again, and use
$chrpath -r \$ORIGIN Pandora -
Put the *.so.5 files in the same directory as your app.
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Run the app on your own machine. Does it run correctly?
$./Pandora -
If #3 works, send the app and shared libs to your friend.
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@JKSH Well, did work. But i cant put de libs on a folder? And de app look that folder to run?
I tried $chrpath -r $ORIGIN\qtlib2 Pandora and $chrpath -r $ORIGIN/qtlib2 Pandora
But the error : ./Pandora: symbol lookup error: ./Pandora: undefined symbol: _ZN13QOpenGLWidgetC1EP7QWidget6QFlagsIN2Qt10WindowTypeEE appears again. I think that i need set the Library_path, yep? How do i that? In a script file?Then i do the #1, and the app runs normally. With the *so files at the same folder that my app.
And, when my friend run the app this error occurs:
This application failed to start because it could not find or load the Qt platform plugin "xcb".Reinstalling the application may fix this problem.
Abortado (imagem do núcleo gravada)This lib libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f3cf3cb1000) is default on linux, and did copy to the libs folder.
How do i fix it? Exists any tutorial step by step to help me?
thanks! -
@Lays147 said:
And, when my friend run the app this error occurs:
This application failed to start because it could not find or load the Qt platform plugin "xcb".
...
How do i fix it? Exists any tutorial step by step to help me?This error means you did not provide
platform/libqxcb.so.The tutorial I gave you shows you how to fix it: http://www.tripleboot.org/?p=138. Look at the screenshot at "Debian/Ubuntu GCC bare bones deployment files" -- make sure you provide all these files.
