I'm importing a project I wrote on a different machine and I get this error message. The project uses the json.simple package and it is when I'm viewing its sources files that I get this error. I have the option to choose source files from where I can select the json,.simple jar and when I do I get asked "Studio cannot determine what kind of files the chosen items contain. Do you want to attach them as 'Sources'?" Selecting yes doesn't seem to fix anything.
The project as a whole is not working. In stead of my interface I get a blank screen. The code before my calling of json functions seems to be executing but not the json functions or anything after. Yet I don't get any error messages in the logcat.