C# Error CS0739 – ‘{0}’ duplicate TypeForwardedToAttribute

C# Error

CS0739 – ‘{0}’ duplicate TypeForwardedToAttribute

Reason for the Error & Solution

‘type name’ duplicate TypeForwardedToAttribute.

An assembly can have no more than one to an external type.

To correct this error

1. Locate and remove the duplicate .

Example

The following code generates CS0739:

// CS0739.cs  
// CS0739  
// Assume that a class Test is declared in a separate dll  
// with a namespace that is named cs739dll.  
[assembly: System.Runtime.CompilerServices.TypeForwardedTo(typeof(cs739dll.Test))]  
[assembly: System.Runtime.CompilerServices.TypeForwardedTo(typeof(cs739dll.Test))]  
namespace cs0739  
{  
    class Program  
    {  
        static void Main(string[] args)  
        {  
        }  
    }  
}