'Main' method not found when compiling through Roslyn

Question

I am using Roslyn to compile a solution with run-time generated code. While the solution compiles perfectly when opened from Visual Studio, it fails from Roslyn:

Answer 1

The problem was solved by adding these two lines before attempting to emit the result:

compilation = compilation.AddReferences(MetadataReference.CreateFromFile(typeof(object).Assembly.Location));
compilation = compilation.WithOptions(new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary));

Notice that both AddReferences and WithOptions return new Compilation instances, so it is necessary to re-assign.