I've installed all that the documentation said is required: ``` $ pip list Package Version ------------ ------- cmake-format 0.6.13 cmakelang 0.6.13 pip 21.0.1 PyYAML 5.4.1 setuptools 49.2.1 six 1.15.0 ``` ``` $ clang-format.exe --version clang-format version 11.0.1 ``` However, `cmake --build build/standalone --target format` works.