Cocoa error 256 core data

Question

I have error \"Cocoa error 256\" when I try to save data. How to fix it? And what problem?

Answer 1

This is what it boils down to (as Tegeril said)

NSFileReadUnknownError Read error, reason unknown

Available in Mac OS X v10.4 and later.

Declared in FoundationErrors.h.

A file can also be a resource located at a URL/URI, if the URL has unencoded characters it can cause this type of error.

Check the path to the resource/file.