Hi, Not sure to all understand. You said that you are using the openshot-qt version but at the end it is the 1.4.4. Or the 1.4.4 is not the Qt version. The Qt version is the 2.0. BTW the 1.4.4 is using Python 2.7.x the 2.0 version is using Python 3.X Another point : melt 0.9.2 and then MLT is just for the serie 1.4.x then 1.4.4 Libopenshot is for the 2.0 version If you are using the 2.0, you are not able to active the setup file. It is not necessary at this step of developpement. Just go to the folder src in the folder openshot-qt and type python launch.py if python 3 is your default version. Either, type python3 launch.py if python 3 is not your default version. Good luck 2015-10-05 18:11 GMT+02:00 Gregory Kramida