My GoogleFoo simply is not strong enough to find a solution.
I am a recent convert to Mac (don't judge). Using Visual Studio 20##? on my PC (C#), when I build and run, Life if great. On my newly acquired Mac-Mini, running Visual Studio 2019 for Mac (C#), when I build and run (following an uber easy code along video), I get "Invalid development certificate found".
Bottom line, I'm lost, Apple Support is no help on this issue. I am pretty confident my keyboard actuator. Any help, even it is a "Here let me Google that for you" would be greatly appreciated.
TIA