[SOLVED][main.obj] Error 2

[fey227223]

This is the Error Msg I get get whenever I try to start an Android App using QT 5.1 for android.
I've tried QtGui, Mobile Qt, Qt Quick 2 and Qt console Applications.
Everytime I get the exact same Error Msg .

:-1: error: [main.obj] Error 2

Does anyone have a clue what that Error means?
I would guess it's connected to not finding an android device to deploy to, but I can open the avd manager from the qt options menu and have a device with the right android version setup, as well as having an appropriate android tablet connected to the pc.

Edit: I am running on Windows 7 Enterprise.

[fey227223]

Uninstall + reinstall did the trick.
Not very satisfying, but at least it worked.