Qt Creator toolbar doesn't appear

Question

I can't see the file, edit, Build, Debug, Tools, Window and Help buttons in Qt's IDE, and I dont know why. Maybe there is a key combination like ctrl + (a letter or number) to show it, or maybe a problem with the installation.

Specs/other:

Ubuntu 14.04 LTS

GNOME Shell 3.10.4

This is how my IDE looks like, as you see, there is no toolbar.

What could be the problem?

Thanks in advance.

Answer 1

If you use KDE. Try configure KDE. In menu: System Settings > Application Style > Window Decorations > Buttons add Application menu to Title bar. After it, in Qt Creator must appear button with File, Edit, Build.. menu.

Answer 2

On Ubuntu 16.04, I used

export QT_QPA_PLATFORMTHEME=

and restarted Qt Creator.

Answer 3

I am using Gnome3 as my window manager as well and This workaround worked for me

sudo apt-get remove appmenu-qt5

Souce : Link to bug report with the workaround

Do let me know if this works for you.