Program does not contain a static 'Main' method suitable for an entry point

Question

Suddenly my whole project stopped compiling at all, showing the following message:

Program \'path_to_obj_project_folder\' does not contain a static \'

Answer 1

Just in case anyone is having the same problem... I was getting this error, and it turned out to be my in my App.xaml file. I had a resource outside my resource dictionary tags, and that caused this error.