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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 Error CS1631 

Error Message

Cannot yield a value in the body of a catch clause

The yield statement is not allowed from within the body of a catch clause. To avoid this error, move the yield statement outside the body of the catch clause.

The following sample generates CS1631:

// CS1631.cs
using System;
using System.Collections;

public class C : IEnumerable
   public IEnumerator GetEnumerator() 
      catch(Exception e)
        yield return this;  // CS1631

   public static void Main() 

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