DebianvsQt

[anda_skoa]

can't write changes to the file /home/projectname/projectname.pro.user: permission denied. Is this bed? =)

Do you have write permissions to that file?

Are you sure you cloned into /home instead of a directory within your user account?

Also I have installed QtCore, but there isn't <QtCore/QCommandLineParser>, <QtCore/QCommandLineOption>. How can I add them? should I do this from QtCreator interface or I can add them directly to installation folder? Or I should add them to the project folder?

Did you install Qt development packages?
E.g. qtbase5-dev?

Cheers,
_