Xcode updated itself to version 6 and now I can\'t launch QtCreator in debug mode. Does anyone know how to solve this?
This is a known bug in Qt Creator. The workaround is simple: in Window->Views, show the debugger command log, then start the debug session, wait a a bit for it to get stuck, and hit Enter from within the command line in the debugger command log.
You can attempt this patch created for LLDB 320.x in Xcode 6.01
git fetch https://codereview.qt-project.org/qt-creator/qt-creator refs/changes/16/95516/2 && git checkout FETCH_HEAD