Compiler Warning (level 1) CS3012
You cannot specify the CLSCompliant attribute on a module that differs from the CLSCompliant attribute on the assembly
In order for a module to be compliant with the Common Language Specification (CLS) through [module:System.CLCSompliant(true)], it must be built with the /target:module compiler option. For more information on the CLS, see Common Language Specification.
Example
The following example, when built without /target:module, generates CS3012:
// CS3012.cs
// compile with: /W:1
[module:System.CLSCompliant(true)] // CS3012
public class C
{
public static void Main()
{
}
}