I got this error message after I apply the new Visual Studio patch using the Visual Studio Community 2017, “Couldn’t connect to logcat, GetProcessId returned: 0”
There are a few thing you can do to resolve this issue.
1) Android Manifest property. Ensure that “Use fast deployment” is unchecked.
2) Android Option property. Ensure that “ACCESS_COARSE_LOCATION” and “INTERNET”
3) Uninstall the app from your simulator and deploy again.
I sincerely hope this vilog helps you and your project. Cheers!