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Compiler Error CS0739

Visual Studio 2008

'type name' duplicate TypeForwardedToAttribute.

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

To correct this error

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)
        {
        }
    }
}
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