Compiler Error CS0662
'method' cannot specify only Out attribute on a ref parameter. Use both In and Out attributes, or neither.
An interface method has a parameter that uses ref with just the Out attribute. A ref
parameter that uses the Out attribute must also use the In attribute.
The following sample generates CS0662:
// CS0662.cs
using System.Runtime.InteropServices;
interface I
{
void method([Out] ref int i); // CS0662
// try one of the following lines instead
// void method(ref int i);
// void method([Out, In]ref int i);
}
class test
{
public static void Main()
{
}
}
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