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@@ -107,6 +107,33 @@ get LLVM. cmake -DCMAKE_BUILD_TYPE=Debug -G Ninja "-DCMAKE_PREFIX_PATH=/path/to/Qt;/path/to/llvm" /path/to/qtcreator_sources cmake --build . +#### Troubleshooting: libxcb plugin not found while using Qt libraries built locally from source + +Ensure all prerequisites for building Qt are installed: +https://doc.qt.io/qt-6/linux.html +https://doc.qt.io/qt-6/linux-requirements.html + +If they were installed before building Qt and xcb plugin is missing try reinstall them with + +```sh + sudo apt-get --reinstall <package_name> +``` + +Reset building configuration for Qt libraries at '/path/to/qt_sources' + +```sh + cmake --build . --target=clean +``` + +and remove CMakeCache.txt + +```sh + rm CMakeCache.txt +``` + +Try building Qt source again. + + ### Windows These instructions assume that Ninja is installed and in the `PATH`, Qt Creator |