I got the message error LINK: fatal error LNK1181 cannot open input file

I have Parallel Studio XE 2013 with Visual Studio 2013. .

1. I start a new IVF Project (static Lbrary)
2. In VS2013, I add a new  win32 console application to the IVF Project
3. I set the fortran function dependent to the main cpp

Please see below

//

#include "stdafx.h"
#include <iostream>

using namespace std;

extern "C"
 {
  void __cdecl FR1(int *a, int *b);
  int __cdecl FF1(int *c);
 }

int main()
{
 int n = 10;
 int nSq;
 int nCube;

 FR1(&n, &nSq);

 cout << "The square is:"<< nSq << endl;

 nCube = FF1(&n);

 cout << "The cube is:"<< nCube << endl;
 getchar();
 return 0;
}

// fortran f90

subroutine FR1(N,M)
!DEC$ ATTRIBUTES DLLEXPORT :: FR1
   
 M = N*N
return
end
   
integer function FF1(N)
!DEC$ ATTRIBUTES DLLEXPORT :: FF1
  
FF1 = N*N*N
    return
    end

I am trying to call  a fortran function f90 from C++, but i got two time the error message  LNK2019

error LNK2019: unresolved external symbol referenced "_FR1" in function _main

error LNK2019: unresolved external symbol referenced "_FF1" in function _main

 With Dumpbin /symbols I got the error message LINK: fatal error LNK1181 cannot open input file

C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC> cd c:\visual studio 2013
\Projekt2\Fortfunc\Debug

c:\visual studio 2013\Projekt2\Fortfunc\Debug>dumpbin/symbols Fortfunc.dll
Microsoft (R) COFF/PE Dumper Version 12.00.21005.1
Copyright (C) Microsoft Corporation.  All rights reserved.

Dump of file Fortfunc.dll
LINK : fatal error LNK1181: Eingabedatei "Fortfunc.dll" kann nicht geöffnet werden.

Thanks in Advance