Go to Model browser. MyStoreProc is the name of the stored procedure (as an example). MyStoreProc will appear in 3 places.
- 1st place- Under Complex Types -> as MyStoreProc_result
- 2nd Place- Under Function Imports -> as MyStoreProc
- 3rd Place – Under Stored Procedures/Functions -> as MyStoreProc
Delete all three from model. Save the edmx (by clicking in the window then ctrl+S). Then right click and click update the model from database. Then add the updated stored procedure and Save again.