C# Compiler Error – CS8137 cannot define a class or member that uti

In this blog post, you’ll learn more about the C# Compiler Error – CS8137 and the related message description

C# Compiler Error Code

CS8137

C# Compiler Description for the Code :CS8137

Cannot define a class or member that utilizes tuples because the compiler required type ‘{0}’ cannot be found. Are you missing a reference?