Xcode Data Model Compiler - MOMC Error: Command momc failed with exit code 1

Question

I am having troubles integrating XMPP on my iOS Project using Xcode 4.4 under Mac Mountain Lion OS X. I followed every step but I got stuck with this problem:

Command momc failed with exit code 1

See screenshot:

I have deleted all the .xcdatamodel files, clean and re-build the project, but the error is still there.

Intromit

Answer 1

Ok. Solved it. You have to delete the *.xcdatamodel files on the Xcode project. (Right click > Delete).

Intromit

Same. I deleted the .xcdatamodel file and reimported. – Lian

I had this after moving the file to a different directory. No amount of deleting derived data/clean builds would fix it - I had to delete it from the project, clean everything and then re-add it. – Raddy

Follow-up: it still came back a few builds later. I had to do this: https://mcmap.net/q/1323277/-could-not-create-bundle-folder-for-versioned-model – Raddy

Answer 2

Check if you have empty .xcdatamodel folders inside .xcdatamodeld. This may happen due to git behaviour for example.

Heredia

For me too. Thanks! – Mountainside

Answer 3

Maybe the problem is iOS/iOS Simulator version! If you don't delete the *.xcdatamodel for git, you can try replace iOS/iOS Simulator SDK or update. My problem is resolved in this way.

Jay

Answer 4

Face the same problem

I just created new model with new name and copy all the entity from old model and paste in new model and deleted old model, it worked

Adrieneadrienne

Answer 5

This also can happen when the project is first compiled on a newer version of xCode (beta versions for example) and then trying to recompile with the original version.

Hercegovina