QT CLOUD MESSAGING DOC GENERATION: define following exports in command prompt / terminal: BUILDDIR="." QT_VER="5.11" QT_VERSION="5.11" QT_VERSION_TAG="5.11" QT_INSTALL_DOCS="/Qt/Docs/Qt-5.9.2" Then run command: /Qt/5.9.2//bin/qdoc qtcloudmessaging.qdocconf