"Unknown Window class" message

Number:rdar://35511761 Date Originated:13-Nov-2017 02:31 PM
Status:Open Resolved:
Product:macOS + SDK Product Version:macOS 10.12.6 (16G29); Xcode 9.2 beta (9C34b)
Classification:Other Bug Reproducible:Always
Dear Xcoderinos and/or AppKitterinos,

I would prefer not to get a spurious warning at runtime when I put a window controller scene in a storyboard.


Steps to Reproduce:
1. Create a new project using the macOS Cocoa App template.
2. Enable “Use Storyboards” and turn off all other check boxes.
3. Run the project.

Expected Results:
No diagnostic messages.

Actual Results:
The following diagnostic message:

2017-11-13 14:28:35.640629-0600 test[82941:11257391] Unknown Window class (null) in Interface Builder file,
	 creating generic Window instead

macOS 10.12.6 (16G29); Xcode 9.2 beta (9C34b)



This has been duped to radar://34994636. A fix has already been made, and will be available in an upcoming Xcode release (and its release notes).

By quinntaylor at Jan. 16, 2018, 7:01 p.m. (reply...)

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