Xcode: Interface Builder XIB Compiler Error
cocoa, macos, objective-c, xcode
Solution
Aha! What a ridiculous solution! Hope this helps somebody.
Add a new xib file!
And delete the old `MainMenu.xib` for good measure. The new xib will show up as expected.
But wait - there's more!
I'm not sure if it's just that my Xcode is horribly corrupted, but here's what else I had to do to get my application to run successfully:
1 - Go to your general project settings and set the Main Interface to your new xib file's name without the `.xib` extension! Otherwise, you'll get output in your console that says `Unable to load nib file`. See pics to compare. This will get your blank app window to pop up when you run the program.
2 - Now you need your app delegate to do stuff. Drag an `Object` from the object library to the list of objects in the interface builder. Define its class as your app delegate class name and the object should rename itself to 'App Delegate'.
3 - control drag from `Application` to `App Delegate` and select 'delegate'. Now your app delegate code will work.
4 - Add a `NSLog(@"app success!");` statement in the `applicationDidFinishLaunching` method to confirm you did everything correctly, hit run, watch the window pop up and the NSLog output into the console, and congratulate yourself for making an Apple product work the way it should have been designed to work.
Problem
Xcode 5.1.1 and OS X 10.9.3 I open Xcode and start a new Cocoa project. I then click run. The build fails, and I get the following error message: ``` Interface Builder XIB Compiler Error Interface Builder was unable to determine the type of "MainMenu.xib". ``` I also don't see the usual WYSIWYG editor when I select `MainMenu.xib` just a black screen. I notice the "type" of file is "Default - Abstract Interface Builder File", whereas on other working projects I have built in the past, the "type" is "Default - Interface Builder File". Seems there's something about it being an "abstract" file that's causing Xcode to not display the interface builder. I tried fully uninstalling Xcode and re-downloading it from the App Store. Didn't help. Multiple google searches have turned up nothing helpful, and the other Stack Overflow questions with a similar title to mine aren't illuminating. I can't imagine everyone else with Xcode 5.1 has this issue. Any experts out there that could suggest a quick fix?