Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Export (0) Print
Expand All
Expand Minimize
Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here.

Compiler Warning (level 1) CS1633 

Error Message

Unrecognized #pragma directive

The pragma used was not one of the known pragmas supported by the C# compiler. To resolve this error, use only pragmas supported.

The following sample generates CS1633:

// CS1633.cs
// compile with: /W:1
#pragma unknown  // CS1633

class C
{
   public static void Main()
   {
   }
}

Community Additions

ADD
Show:
© 2015 Microsoft