Compiler Error CS0576

Namespace 'namespace' contains a definition conflicting with alias 'identifier'

An attempt was made to use the same namespace twice.

Example

The following sample generates CS0576:

// CS0576.cs
using SysIO = System.IO;
public class SysIO
{
   public void MyMethod() {}
}

public class Test
{
   public static void Main()
   {
      SysIO.Stream s;   // CS0576
   }
}