Troubleshooting “program does not contain a static 'Main' method” when it clearly does…?

Question

My MS Visual C# program was compiling and running just fine. I close MS Visual C# to go off and do other things in life.

I reopen it and (before doing anything else)

Answer 1

In my case (where none of the proposed solutions fit), the problem was I used async/await where the signature for main method looked this way:

static async void Main(string[] args)

I simply removed async so the main method looked this way:

static void Main(string[] args)

I also removed all instances of await and used .Result for async calls, so my console application could compile happily.