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Compiler Warning (level 1) CS3002

Return type of 'method' is not CLS-compliant

A public, protected, or protected internal method must return a value whose type is compliant with the Common Language Specification (CLS). For more information on CLS compliance, see Language independence and language-independent components.

Example

The following example generates CS3002:

C#
// CS3002.cs  
  
[assembly:System.CLSCompliant(true)]  
public class a  
{  
    public ushort bad()   // CS3002, public method  
    {  
        ushort a;  
        a = ushort.MaxValue;  
        return a;  
    }  
  
    private ushort OK()   // OK, private method  
    {  
        ushort a;  
        a = ushort.MaxValue;  
        return a;  
    }  
  
    public static void Main()  
    {  
    }  
}