==> Starting cmake... -- The C compiler identification is GNU -- The CXX compiler identification is GNU -- Check for working C compiler: /usr/bin/gcc -- Check for working C compiler: /usr/bin/gcc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working CXX compiler: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done CMake Error at cmake/modules/FindQt.cmake:32 (pkg_search_module): Unknown CMake command "pkg_search_module". Call Stack (most recent call first): CMakeLists.txt:39 (find_package)