Software caused connection abort. Error returned in reply:Connection invalid

Question

My Xcode 9 gives the message to which I don\'t know how to respond. I want to run the app to my simulator, and I am getting this weird message. Attaching the snapshot for the sa

Answer 1

It seems that there is error while Xcode is trying to connect with Simulator/Device in order to run app.

So there are multiple solution to this issue :

1. Clean project (shortcut : cmd + shift + k) / Clean Build project (shortcut : cmd + shift + alt + k)

2. Delete derived data content (Open Xcode preference using cmd + comma). Goto Location tab. In Derived Data section press on arrow symbol.

3. Quit Xcode and Simulator

For me solution 3 worked!