Question: I currently have an entity Exercise with attributes name, picture , muscle, etc.

When an exercise object is created and saved in my app (using core data), all these attributes are set from a dictionary in a .plist. I now want to add descriptions (paragraph of text) but it doesn't make sense to add a description attribute to Exercise because there will be several of the same exercises and this may just waste space.

Is there a way I can create a new class, maybe exerciseDescription, that pulls the exercise name attribute from the selected exercise, and pull the corresponding description from a .plist?

I have almost 300 exercises and the plist I am currently pulling info from is an array of dictionarys for each muscle group which have an array of exercises in each.

Answer: 
For anyone having this problem on their own hg repo you need to run **hg recover *on the remote repo***. It's a very simple fix but the error messages doesn't make this obvious.

(This is mentioned above, I just want to make it very clear).
You should use the CodePlex [Contact Us](https://www.codeplex.com/site/contact) form and say what error you're getting and we'll run "hg recover" on your project for you.