“Couldn't communicate with a helper application” authenticating

问题

I've been trying to authenticate with my Apple Id in Xcode, but it's consistently showing the "Couldn't communicate with a helper application" dialog. I restarted Xcode, computer, etc. It also doesn't seem temporary as it's happening a couple of days already.

Can reproduce it with all my Xcode installations: 12 beta, 12 and 11.3.1. MacOS 11 beta. Any ideas?

回答1:

Here's what I had to do:

Delete the Developer directories:

rm -rf ~/Library/Developer/
rm -rf /Library/Developer/

And re-install Xcode.

This did not help:

• Only reinstalling Xcode
• Upgrading/downgrading Xcode
• Upgrading from the OS beta to release version.

来源：https://stackoverflow.com/questions/64348054/couldnt-communicate-with-a-helper-application-authenticating