The library hostpolicy.dll was not found

Question

I have a simple .NET Core project (console app) that I\'m trying to compile and run. dotnet build succeeds, but I get the following error when I do dotnet

Answer 1

This error message is unhelpful. The actual problem is a missing emitEntryPoint property:

  "buildOptions": {
    ...
    "emitEntryPoint": true
  },

Once this is added, the compiler will let you know about any other problems (like a missing static void Main() method). Successfully compiling the project will result in an output that dotnet run can execute.