macOS Playground NIB changes not picked up

I'm trying to create a simple macOS Playground with a couple buttons in a view to trigger some code. The Xcode 9 template works, and shows the live view with "Hello World!" displayed. But after editing the Storyboard, my button doesn't show up. I tried modifying the text of the existing label, and that change doesn't show up either.


Google is useless because a) results are old and b) results are for iOS.


Like so much stuff from Apple these days, this seems broken. At best it's extremely counterintuitive.


Any suggetsions on how to get past this?


Thanks!

Replies

I expect that the problem is that your playground instance was built and started with the output from your original files, so you won't see the result of your changes until you save the storyboard and start a new playground instance.

Even though there's a big push to make the UI tools, it still comes down to source files, compiled results, and "Did I restart with the old build product or the new build product?"