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Compiler Error CS0118

  • Article

'construct1_name' is a 'construct1' but is used like a 'construct2'

The compiler detected a situation in which a construct was used in some erroneous way or a disallowed operation was tried on a construct. Some common examples include the following:

  • A try to instantiate a namespace (instead of a class)

  • A try to call a field (instead of a method)

  • A try to use a type as a variable

  • A try to use an extern alias as a type.

To resolve this error, make sure that the operation you are performing is valid for the type you are performing the operation on.

Example

The following sample generates CS0118.

// CS0118.cs
// compile with: /target:library
namespace MyNamespace
{
   class MyClass
   {
      // MyNamespace not a class
      MyNamespace ix = new MyNamespace ();   // CS0118
   }
}