I was trying to install *extra-cmake-modules* both from source and via kdesrc-build, and then I got the same error:
Extension error: Could not import extension ecm (exception: No module named 'sphinxcontrib') make[2]: *** [docs/CMakeFiles/documentation.dir/build.make:62: docs/doc_format_html] Error 2 make[2]: Leaving directory '/home/masterpi/Documents/Extra-CMake-Modules/extra-cmake-modules/build' make[1]: *** [CMakeFiles/Makefile2:217: docs/CMakeFiles/documentation.dir/all] Error 2 make[1]: Leaving directory '/home/masterpi/Documents/Extra-CMake-Modules/extra-cmake-modules/build' make: *** [Makefile:163: all] Error 2 It seems that the problem is about module *Sphinx*, but I tried to uninstall and install it again via pip and the error still occurred. So what can I do to fix it? Here are logs when I executed cmake -DCMAKE_INSTALL_PREFIX=/usr .. and make command: $ cmake -DCMAKE_INSTALL_PREFIX=/usr .. -- WARNING: skipping tests that require PyQt -- The following features have been enabled: * BUILD_HTML_DOCS, Generate HTML documentation for installed modules. * BUILD_MAN_DOCS, Generate man page documentation for installed modules. * BUILD_TESTING, Build automated tests. -- The following OPTIONAL packages have been found: * Sphinx (required version >= 1.2), Tool to generate documentation., <https://www.sphinx-doc.org/> Required to build documentation for Extra CMake Modules. * QCollectionGenerator, Qt help collection generator., <https://www.qt.io/> Required to build Extra CMake Modules documentation in Qt Help format. * Qt5LinguistTools, Qt5 linguist tools., <https://www.qt.io/> Required to run tests for the ECMPoQmTools module. * Qt5Core, Qt5 core library., <https://www.qt.io/> Required to run tests for the ECMQtDeclareLoggingCategory module, and for some tests of the KDEInstallDirs module. * Qt5Network (required version >= 5.14.2) * Qt5Qml (required version >= 5.14.2) * Qt5QmlModels (required version >= 5.14.2) * Qt5Gui (required version >= 5.14.2) * Qt5Quick, Qt5 Quick library., <https://www.qt.io/> Required to run tests for the ECMQMLModules module. -- The following features have been disabled: * BUILD_QTHELP_DOCS, Generate QtHelp documentation for installed modules. -- Configuring done -- Generating done -- Build files have been written to: /home/masterpi/Documents/Extra-CMake-Modules/extra-cmake-modules/build $ make make[1]: Entering directory '/home/masterpi/Documents/Extra-CMake-Modules/extra-cmake-modules/build' make[2]: Entering directory '/home/masterpi/Documents/Extra-CMake-Modules/extra-cmake-modules/build' make[2]: Leaving directory '/home/masterpi/Documents/Extra-CMake-Modules/extra-cmake-modules/build' make[2]: Entering directory '/home/masterpi/Documents/Extra-CMake-Modules/extra-cmake-modules/build' [ 50%] sphinx-build html: see /home/masterpi/Documents/Extra-CMake-Modules/extra-cmake-modules/build/docs/build-html.log /usr/lib/python3.8/importlib/__init__.py:127: RemovedInSphinx40Warning: The alias 'sphinx.util.pycompat.htmlescape' is deprecated, use 'html.escape' instead. Check CHANGES for Sphinx API modifications. return _bootstrap._gcd_import(name[level:], package, level) Extension error: Could not import extension ecm (exception: No module named 'sphinxcontrib') make[2]: *** [docs/CMakeFiles/documentation.dir/build.make:62: docs/doc_format_html] Error 2 make[2]: Leaving directory '/home/masterpi/Documents/Extra-CMake-Modules/extra-cmake-modules/build' make[1]: *** [CMakeFiles/Makefile2:217: docs/CMakeFiles/documentation.dir/all] Error 2 make[1]: Leaving directory '/home/masterpi/Documents/Extra-CMake-Modules/extra-cmake-modules/build' make: *** [Makefile:163: all] Error 2
