I can't fix this one error

[dakotahelp]

I've tried everything to fix this, any help is greatly appreciated, this is the only error I'm getting: 1>Source.obj : error LNK2019: unresolved external symbol "float __cdecl calctotaltime(int,float)" (?calctotaltime@@YAMHM@Z) referenced in function _main
1>E:\Project1\Debug\Project1.exe : fatal error LNK1120: 1 unresolved externals

#include <iostream>
using namespace std;

//Function prototypes

int collectdvdmins ( int dvdmins );

float calctotaltime ( int dvdmins, float totaltime ); 

void displayoutput ( int dvdmins, float totaltime );


int main ( )

{

int dvdmins = 0;
float totaltime = 0; 

dvdmins = collectdvdmins ( dvdmins );
totaltime = calctotaltime ( dvdmins, totaltime );
displayoutput( dvdmins, totaltime );

system ("PAUSE");

return 0;

}

//Function Defintions 

int collectdvdmins ( int dvdmins )
{
cout << "Enter the total DVD runtime in minutes./n";
cin >> dvdmins;
return dvdmins;
}

float calctotaltime (int dvdmins, float totaltime )
{
totaltime = dvdmins/60;
return totaltime;
}

void displayoutput ( int dvdmins, float totaltime )
{
cout<< "DVD runtime\n\n";
}

[Yanson]

runs without error for me.

[Zhuge]

Try cleaning and rebuilding the project.