> [ 50%] Linking CXX executable
milestone2 /usr/bin/ld: cannot find -lQt5::Core /usr/bin/ld: cannot find -lQt5::Gui /usr/bin/ld: cannot find -lQt5::Widgets /usr/bin/ld: cannot find -lQt5::Test /usr/bin/ld: cannot find -lQt5::Concurrent /usr/bin/ld: cannot find -lQt5::OpenGL collect2: error: ld returned 1 exit status CMakeFiles/milestone2.dir/build.make:125: recipe for target 'milestone2' failed make[2]: * [milestone2] Error 1 CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/milestone2.dir/all' failed make[1]: [CMakeFiles/milestone2.dir/all] Error 2 Makefile:83: recipe for target 'all' failed make: ** [all] Error 2