'Throw' operand must derive from 'System.Exception'

The argument supplied to Throw must either be an instance of System.Exception or an instance of a class derived from System.Exception.

Error ID: BC30665

To correct this error

• Use an argument derived from System.Exception, as in the following example.

  Throw New System.Exception("This is an error.")  
  

See also

• Throw Statement
• Try...Catch...Finally Statement
• System.Exception
• Handling and throwing exceptions in .NET