Я установил Qt5.7, включая Qtcreator, используя инструмент установки "qt-unified-linux-x64-3.0.5-online.run" в папку / usr / local / Qt
Когда я запускаюqtcreator в подробном режиме (экспорт QT_DEBUG_PLUGINS = 1), я получаю следующий вывод:
Cannot load library /usr/local/Qt/5.7/gcc_64/plugins/platforms/libqxcb.so: (/usr/local/Qt/5.7/gcc_64/lib/libQt5XcbQpa.so.5: symbol _ZTI18QPlatformClipboard, version Qt_5 not defined in file libQt5Gui.so.5 with link time reference)
QLibraryPrivate::loadPlugin failed on "/usr/local/Qt/5.7/gcc_64/plugins/platforms/libqxcb.so" : "Cannot load library /usr/local/Qt/5.7/gcc_64/plugins/platforms/libqxcb.so: (/usr/local/Qt/5.7/gcc_64/lib/libQt5XcbQpa.so.5: symbol _ZTI18QPlatformClipboard, version Qt_5 not defined in file libQt5Gui.so.5 with link time reference)"
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, xcb, vnc.
Запуск ldd /usr/local/Qt/5.7/gcc_64/plugins/platforms/libqxcb.so возвращает
linux-vdso.so.1 => (0x00007ffdda390000)
libQt5XcbQpa.so.5 => /usr/local/Qt/5.7/gcc_64/lib/libQt5XcbQpa.so.5 (0x00007f9e44a33000)
libX11-xcb.so.1 => /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007f9e44831000)
libXi.so.6 => /usr/lib/x86_64-linux-gnu/libXi.so.6 (0x00007f9e44621000)
libSM.so.6 => /usr/lib/x86_64-linux-gnu/libSM.so.6 (0x00007f9e44419000)
libICE.so.6 => /usr/lib/x86_64-linux-gnu/libICE.so.6 (0x00007f9e441ff000)
libdbus-1.so.3 => /lib/x86_64-linux-gnu/libdbus-1.so.3 (0x00007f9e43fb3000)
libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f9e43d91000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f9e43b8d000)
libgthread-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgthread-2.0.so.0 (0x00007f9e4398b000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f9e43783000)
libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007f9e43472000)
libXrender.so.1 => /usr/lib/x86_64-linux-gnu/libXrender.so.1 (0x00007f9e43268000)
libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007f9e43056000)
libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007f9e42d1c000)
libfontconfig.so.1 => /usr/lib/x86_64-linux-gnu/libfontconfig.so.1 (0x00007f9e42ad9000)
libfreetype.so.6 => /usr/lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007f9e4282f000)
libEGL.so.1 => /usr/lib/nvidia-384/libEGL.so.1 (0x00007f9e4262a000)
libQt5Gui.so.5 => /usr/local/Qt/5.7/gcc_64/lib/libQt5Gui.so.5 (0x00007f9e41e9e000)
libQt5DBus.so.5 => /usr/local/Qt/5.7/gcc_64/lib/libQt5DBus.so.5 (0x00007f9e41c1e000)
libQt5Core.so.5 => /usr/local/Qt/5.7/gcc_64/lib/libQt5Core.so.5 (0x00007f9e41500000)
libGL.so.1 => /usr/lib/nvidia-384/libGL.so.1 (0x00007f9e411be000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f9e40fa1000)
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f9e40c1f000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f9e40916000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f9e40700000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f9e40336000)
libuuid.so.1 => /lib/x86_64-linux-gnu/libuuid.so.1 (0x00007f9e40131000)
libsystemd.so.0 => /lib/x86_64-linux-gnu/libsystemd.so.0 (0x00007f9e450fc000)
libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007f9e3ff2d000)
libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f9e3fd27000)
/lib64/ld-linux-x86-64.so.2 (0x00007f9e44f84000)
libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f9e3fab7000)
libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007f9e3f88e000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f9e3f674000)
libpng12.so.0 => /usr/lib/x86_64-linux-gnu/libpng12.so.0 (0x00007f9e3f44f000)
libGLdispatch.so.0 => /usr/lib/nvidia-384/libGLdispatch.so.0 (0x00007f9e3f181000)
libicui18n.so.56 => /usr/local/Qt/5.7/gcc_64/lib/libicui18n.so.56 (0x00007f9e3ece7000)
libicuuc.so.56 => /usr/local/Qt/5.7/gcc_64/lib/libicuuc.so.56 (0x00007f9e3e92f000)
libicudata.so.56 => /usr/local/Qt/5.7/gcc_64/lib/libicudata.so.56 (0x00007f9e3cf4c000)
libnvidia-tls.so.384.130 => /usr/lib/nvidia-384/tls/libnvidia-tls.so.384.130 (0x00007f9e3cd48000)
libnvidia-glcore.so.384.130 => /usr/lib/nvidia-384/libnvidia-glcore.so.384.130 (0x00007f9e3ae8c000)
libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x00007f9e3ac6a000)
liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f9e3aa48000)
libgcrypt.so.20 => /lib/x86_64-linux-gnu/libgcrypt.so.20 (0x00007f9e3a767000)
libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 (0x00007f9e3a553000)
Я не могу зафиксировать ошибку.Соответствующими потоками являются, например, https://forum.qt.io/topic/71369/failed-to-load-qt-platform-plugin-xcb/2,, но libQt5XcbQpa.so.5.6.1 в моем случае не отсутствует.Есть идеи?