I have recently installed ArcGIS AppStudio and have been using it, today i tured to edit an app i made and got this message. I know for sure that I have QTcreator as i can find it in the appstudio folder and open it. I read in another thread that i should be able to edit my spps directly in qtcreator by going to tools and then external but i do not see the appstudio option. What should i do in order to be able to edit these apps?
This seems to be an installation error, can you try uninstalling and reinstalling the entire AppStudio Desktop suite of apps? AppStudio Desktop installation should take care of all of these.