Compiler Error C3103

'argument': repeated named argument

An attribute can not repeat named arguments.

For more information, see User-Defined Attributes.

Example

The following sample generates C3103.

// C3103.cpp  
// compile with: /clr /c  
using namespace System;  

[AttributeUsage(AttributeTargets::All)]  
public ref class Attr : public Attribute {  
public:  
   int m_t;  
};  

[Attr(m_t = 10, m_t = 1)]   // C3103  
// try the following line instead  
// [Attr(m_t = 10)]  
ref class A {};