Since feedback assitant does not allow bug reports in beta-2, I'll drop this here.
Howdy, I just installed Xcode 11 beta 2, and ran my slightly modified version of the UIDocumentBrowserViewController-based template app, which was working the last time I tried it. However, in Xcode 11 beta 2, in the iPad simulator, it no longer works. I have another app which uses the same template, but had been modified to click the checkbox and run for Mac, and it has the same trouble.
Here are the error logs
[DocumentManager] Failed to get the remote browser View Controller with error (Error Domain=NSCocoaErrorDomain Code=4097 "connection on anonymousListener or serviceListener from pid ####" UserInfo={NSDebugDescription=connection on anonymousListener or serviceListener from pid ####})
[DocumentManager] Remote view controller crashed with error: Error Domain=NSCocoaErrorDomain Code=4097 "connection on anonymousListener or serviceListener from pid ####" UserInfo={NSDebugDescription=connection on anonymousListener or serviceListener from pid ####}. Trying to relaunch.
Where #### is a pid which changes on each attempt (obviously).
These error messages show up a few times in the logs, and then:
[DocumentManager] The UIDocumentBrowserViewController view service crashed for too many times in a row.
A search on the web indicates these are normally XPC related, and since the doc browser is "out of process" (I assume), I suspect that's the connection.
When I re-open my projects in beta 1 and run in the beta 2 simulator, I get the same error. However, when I run in the beta 1 simulator, they work correctly.