I don't think this is a kdelibs5-dev bug. I can't say exactly where the error is, but the following two small changes: adding "-lQtGui -lkdeui" after "-lQtCore" to languages/cpp/cppduchain/CMakeFiles/kdev4cppduchain.dir/link.txt and "-lkparts" after "-lkdecore" to buildtools/managers/cmake/CMakeFiles/kdevcmakemanager.dir/link.txt make kdevelop compile. Regards, Andy.