[HOOK - conan-center.py] post_package_info(): ERROR: [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] The *.cmake files have to be placed in a folder declared as `cpp_info.builddirs`. Currently folders declared: [''] (https://github.com/conan-io/conan-center-index/blob/master/docs/error_knowledge_base.md#KB-H019) [HOOK - conan-center.py] post_package_info(): ERROR: [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] Found files: ./build/cmake/abis.cmake; ./build/cmake/android.toolchain.cmake; ./build/cmake/platforms.cmake; ./build/cmake/system_libs.cmake; ./sources/cxx-stl/llvm-libc++abi/cmake/Modules/HandleCompilerRT.cmake; ./sources/cxx-stl/llvm-libc++abi/cmake/Modules/HandleLibcxxabiFlags.cmake; ./sources/cxx-stl/llvm-libc++abi/cmake/Modules/HandleOutOfTreeLLVM.cmake; ./sources/cxx-stl/llvm-libc++abi/cmake/Modules/MacroEnsureOutOfSourceBuild.cmake; ./sources/cxx-stl/llvm-libc++abi/cmake/config-ix.cmake; ./sources/third_party/googletest/cmake/internal_utils.cmake (https://github.com/conan-io/conan-center-index/blob/master/docs/error_knowledge_base.md#KB-H019) 'ndk-build' is not recognized as an internal or external command, operable program or batch file. ERROR: android-ndk/r21d (test package): Error in test() method, line 13 self.run("ndk-build --version", run_environment=True) ConanException: Error 1 while executing ndk-build --version