问题
Getting the exception later in the program when _managedObjectModel is being used. Below is initialiser code.
NSURL *modelURL = [[NSBundle mainBundle] URLForResource:self.managedObjectModelName withExtension:@"momd"];
_managedObjectModel = [[NSManagedObjectModel alloc] initWithContentsOfURL:modelURL];
The problem is that _managedObjectModel is pointing to a garbage memory location. After analysing GPR and assembly code i found that the ManagedObjectModel was being initialised properly but, when the content from schema is being loaded into it - the object pointer starts pointing at random locations way before the object is, or somewhere in between the object's allocated memory.
If i try to access underlying content using something like this : [_managedObjectModel->_entities allKeys], i do get all the keys in schema.
Has anyone ever faced such issues ?
This is probably something similar to https://github.com/typhoon-framework/Typhoon/issues/138
回答1:
self.managedObjectModelName is same as your data model name?
I guess some where here is problem in names itself.
来源：https://stackoverflow.com/questions/26890278/entityforname-nil-is-not-a-legal-nspersistentstorecoordinator-for-searching-f