compiler-warning-level-1-c4944.md

description	title	ms.date	f1_keywords	helpviewer_keywords	ms.assetid
Learn more about: Compiler Warning (level 1) C4944	Compiler Warning (level 1) C4944	11/04/2016	C4944	C4944	e2905eb1-2e3b-4fab-a48b-c0cae0fd997f

Compiler Warning (level 1) C4944

'symbol' : cannot import symbol from 'assembly1': as 'symbol' already exists in the current scope

A symbol was defined in a source code file and then a #using statement referenced an assembly that also defined the symbol. The symbol in the assembly is ignored.

Examples

The following sample creates a component with a type called ClassA.

// C4944.cs
// compile with: /target:library
// C# source code to create a dll
public class ClassA {
   public int i;
}

The following samples generate C4944.

// C4944b.cpp
// compile with: /clr /W1
class ClassA {
public:
   int u;
};

#using "C4944.dll"   // C4944 ClassA also defined C4944.dll

int main() {
   ClassA * x = new ClassA();
   x->u = 9;
   System::Console::WriteLine(x->u);
}