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Compiler Error CS0185

'type' is not a reference type as required by the lock statement

The lock statement can only evaluate reference types.

The following sample generates CS0185:

// CS0185.cs
public class MainClass
   public static void Main ()
      lock (1)   // CS0185
      // try the following lines instead
      // MainClass x = new MainClass();
      // lock(x)

See Also

Reference Types