App crash when I submit a new post to Parse

Question

This is the only Place my app crashes and one of the more important features

The LogCat tells me:

java.lang.IllegalArgumentException: You must

Answer 1

In my case I had to remove the '@ParseClassName' annotation in my model class. My understanding is that if I have a parse model class 'Posts' and I call 'registerSubclass(yourclassname)' in Application, then all I need is

Post obj = new Post();