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Compiler Warning (level 1) C4489


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The latest version of this topic can be found at Compiler Warning (level 1) C4489.

specifier' : not allowed on interface method 'method'; override specifiers are only allowed on ref class and value class methods

A specifier keyword was incorrectly used on an interface method.

For more information, see Override Specifiers.

The following sample generates C4489.

// C4489.cpp  
// compile with: /clr /c /W1  
public interface class I {   
   void f() new;   // C4489  
   virtual void b() override;   // C4489  
   void g();   // OK