Well, the problem is not in my 200 lines of inserting objects, setting
attributes and relationships into the document, because I removed and
simply ran this:
BmxBk* bmxBk = [documentController openUntitledDocumentAndDisplay:NO
error:&error] ;
[bmxBk setFileURL:[NSURL fileURLWithPath:docPath]] ;
[bmxBk saveDocument:self] ;
in DepartmentsAndEmployees, the Apple Sample for Core Data Document-
Based Applications, and got the same crash. However, if I run this
code in a non-Core-Data document-based application, there is no crash.
My app, like DepartmentsAndEmployees, will saveDocument: with no
trouble if when the document is created by clicking File>New in the
menu.
My guess is that something needs to be done before you can save an
NSPersistentDocument, something more than is done by
openUntitleDocumentAndDisplay:error: and setFileURL:. Does anyone
know what that "something" might be?
Jerry
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