Hi,when I add @obj(Document) in NSDocument Class definition, I get the following execution error message2015-11-25 12:17:41.169 Lesson 20 Grades[11222:4817041] The com.mycompany.Lesson_20_Grades type doesn't map to any NSDocumentClass.2015-11-25 12:17:41.170 Lesson 20 Grades[11222:4817041] -[NSDocumentController openUntitledDocumentOfType:andDisplay:error:] failed during state restoration. Here's the error:Error Domain=NSCocoaErrorDomain Code=256 The file couldn’t be opened.
Topic:
Programming Languages
SubTopic:
Swift
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