C# Compiler Error – CS8338 the first parameter of the ‘in’ extensio

In this blog post, you’ll learn more about the C# Compiler Error – CS8338 and the related message description

C# Compiler Error Code

CS8338

C# Compiler Description for the Code :CS8338

The first parameter of the ‘in’ extension method ‘{0}’ must be a concrete (non-generic) value type.