Failed to connect (storyboard) outlet from (NSApplication) to (NSNibExternalObjectPlaceholder) error in Cocoa and storyboard

Question

I\'ve tried to build a sample Cocoa app on which I want to connect UI components put on storyboard to ViewController.swift as either an IBOutlet or

Answer 1

I've found another easier solution these days while coding.

Check this out.

1) Select File's Owner in Document Outline in the .xib file.

2) Specify the class you want the .xib file to connect with.

3) Now when you connect outlet to the source file, just use default File's Owner. Much easier.

4) I guess it's not enough so far. I've met an exception when running called 'loaded the 'xxx' nib but the view outlet was not set'. We should do something more.

Select the view in Document Outline. Drag from the circle of New Referencing Outlet to the File's Owner in Document Outline.

Alright, that's the new easier solution. No additional objects should add into the xib. If it doesn't work, leave comments below.