Bad host while starting

#1

Error running xcrun simctl openurl booted expee875bbd2ad74196b8d7745b45fe0648://localhost:80: An error was encountered processing the command (domain=NSOSStatusErrorDomain, code=-10814):
The operation couldn’t be completed. (OSStatus error -10814.)

#2

This is what you are seeing?
What command / action led to that error
Is your project detached or not?