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I'm creating the document with:

[NSDocumentController openDocumentWithContentsOfURL:display:completionHandler:]

When I'm working with the instance of NSDocument and sometimes I'm getting crashes because document.fileURL == nil. What cases in NSDocument lifecycle can cause this?

Sanich
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  • I can't find `makeDocumentWithContentsOfURL:alternateContents:ofType:completionHandler:` in the documentation. What does parameter `alternateContents` do? What is the return value? – Willeke Feb 24 '19 at 13:55
  • @Willeke Sorry, I used `openDocumentWithContentsOfURL:display:completionHandler:`. Edited the question. – Sanich Feb 24 '19 at 14:01
  • Is the document created from a file or are you using a web or any other URL? – Sulthan Feb 24 '19 at 14:40

1 Answers1

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document.fileURL is nil until you save the document for the first time.

Dirk
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