<div dir="ltr"><p style="margin:0px 0px 1.4667em;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;line-height:inherit;font-family:Arial,"Helvetica Neue",Helvetica,sans-serif;font-size:15px;vertical-align:baseline;box-sizing:inherit;clear:both;color:rgb(36,39,41)">I was trying to install <strong style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-stretch:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;box-sizing:inherit">extra-cmake-modules</strong> both from source and via kdesrc-build, and then I got the same error:</p><pre style="margin-top:0px;margin-bottom:1.6em;padding:12px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;line-height:1.30769;font-family:Consolas,Menlo,Monaco,"Lucida Console","Liberation Mono","DejaVu Sans Mono","Bitstream Vera Sans Mono","Courier New",monospace,sans-serif;font-size:13px;vertical-align:baseline;box-sizing:inherit;width:auto;max-height:600px;overflow:auto;border-radius:5px"><code style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;line-height:inherit;font-family:Consolas,Menlo,Monaco,"Lucida Console","Liberation Mono","DejaVu Sans Mono","Bitstream Vera Sans Mono","Courier New",monospace,sans-serif;vertical-align:baseline;box-sizing:inherit;background-color:transparent;white-space:inherit;border-radius:0px;background-image:unset;background-position:unset;background-size:unset;background-repeat:unset;background-origin:unset;background-clip:unset">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</code></pre>It seems that the problem is about module <b>Sphinx</b>, but I tried to uninstall and install it again via pip and the error still occurred. <div><p style="margin:0px 0px 1.4667em;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;line-height:inherit;font-family:Arial,"Helvetica Neue",Helvetica,sans-serif;font-size:15px;vertical-align:baseline;box-sizing:inherit;clear:both;color:rgb(36,39,41)">So what can I do to fix it? Here are logs when I executed <code style="margin:0px;padding:2px 4px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;line-height:inherit;font-family:Consolas,Menlo,Monaco,"Lucida Console","Liberation Mono","DejaVu Sans Mono","Bitstream Vera Sans Mono","Courier New",monospace,sans-serif;font-size:13px;vertical-align:baseline;box-sizing:inherit;white-space:pre-wrap;border-radius:3px;background-image:unset;background-position:unset;background-size:unset;background-repeat:unset;background-origin:unset;background-clip:unset">cmake -DCMAKE_INSTALL_PREFIX=/usr ..</code> and <code style="margin:0px;padding:2px 4px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;line-height:inherit;font-family:Consolas,Menlo,Monaco,"Lucida Console","Liberation Mono","DejaVu Sans Mono","Bitstream Vera Sans Mono","Courier New",monospace,sans-serif;font-size:13px;vertical-align:baseline;box-sizing:inherit;white-space:pre-wrap;border-radius:3px;background-image:unset;background-position:unset;background-size:unset;background-repeat:unset;background-origin:unset;background-clip:unset">make</code> command:</p><pre style="margin-top:0px;margin-bottom:1.6em;padding:12px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;line-height:1.30769;font-family:Consolas,Menlo,Monaco,"Lucida Console","Liberation Mono","DejaVu Sans Mono","Bitstream Vera Sans Mono","Courier New",monospace,sans-serif;font-size:13px;vertical-align:baseline;box-sizing:inherit;width:auto;max-height:600px;overflow:auto;border-radius:5px"><code style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;line-height:inherit;font-family:Consolas,Menlo,Monaco,"Lucida Console","Liberation Mono","DejaVu Sans Mono","Bitstream Vera Sans Mono","Courier New",monospace,sans-serif;vertical-align:baseline;box-sizing:inherit;background-color:transparent;white-space:inherit;border-radius:0px;background-image:unset;background-position:unset;background-size:unset;background-repeat:unset;background-origin:unset;background-clip:unset">$ 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., <<a href="https://www.sphinx-doc.org/">https://www.sphinx-doc.org/</a>>
   Required to build documentation for Extra CMake Modules.
 * QCollectionGenerator, Qt help collection generator., <<a href="https://www.qt.io/">https://www.qt.io/</a>>
   Required to build Extra CMake Modules documentation in Qt Help format.
 * Qt5LinguistTools, Qt5 linguist tools., <<a href="https://www.qt.io/">https://www.qt.io/</a>>
   Required to run tests for the ECMPoQmTools module.
 * Qt5Core, Qt5 core library., <<a href="https://www.qt.io/">https://www.qt.io/</a>>
   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., <<a href="https://www.qt.io/">https://www.qt.io/</a>>
   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
<pre style="margin-top:0px;margin-bottom:1.6em;padding:12px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;line-height:1.30769;font-family:Consolas,Menlo,Monaco,"Lucida Console","Liberation Mono","DejaVu Sans Mono","Bitstream Vera Sans Mono","Courier New",monospace,sans-serif;vertical-align:baseline;box-sizing:inherit;width:auto;max-height:600px;overflow:auto;border-radius:5px"><code style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;line-height:inherit;font-family:Consolas,Menlo,Monaco,"Lucida Console","Liberation Mono","DejaVu Sans Mono","Bitstream Vera Sans Mono","Courier New",monospace,sans-serif;vertical-align:baseline;box-sizing:inherit;background-color:transparent;white-space:inherit;border-radius:0px;background-image:unset;background-position:unset;background-size:unset;background-repeat:unset;background-origin:unset;background-clip:unset">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</code></pre></code></pre></div></div>