Compiler Error C2086

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The latest version of this topic can be found at Compiler Error C2086.

identifier' : redefinition

The identifier is defined more than once, or a subsequent declaration differs from a previous one.

C2086 can also be the result of incremental building for a referenced C# assembly. Rebuild the C# assembly to resolve this error.

The following sample generates C2086:

// C2086.cpp  
main() {  
  int a;  
  int a;   // C2086 not an error in ANSI C  
}