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#error lets you generate an error from a specific location in your code.

#error text


The text of the error that should appear in the compiler's output.


A common use of #error is in a conditional directive. It is also possible to generate a user-defined warning with #warning.


// preprocessor_error.cs
// CS1029 expected
#define DEBUG
public class MyClass 
   public static void Main() 
      #if DEBUG
      #error DEBUG is defined

See Also

C# Preprocessor Directives

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