Help me

Can somebody help, i got problem with the codes when i try to verify and could not create the sketch

#include “DualVNH5019MotorShield.h”
DualVNH5019MotorShield md;
char dataIn=‘S’;char determinant;char det;int vel = 0; //Bluetooth Stuff
/int power = 4;/
int overdrive = 13;

void setup(){
Serial.begin(9600);md.init();
/pinMode(power , OUTPUT);/ //toggle switch function
pinMode(overdrive, OUTPUT);
}

void loop(){ det = check();

while (det == ‘F’) // F, move forward
{md.setSpeeds(vel,vel);det = check();}

while (det == ‘B’) // B, move back
{md.setSpeeds(-vel,-vel);det = check();}

while (det == ‘L’) // L, move wheels left
{md.setSpeeds(vel/4,vel);det = check();}

while (det == ‘R’) // R, move wheels right
{md.setSpeeds(vel,vel/4);det = check();}

while (det == ‘I’) // I, turn right forward
{md.setSpeeds(vel,vel/2);det = check();}

while (det == ‘J’) // J, turn right back
{md.setSpeeds(-vel,-vel/2);det = check();}

while (det == ‘G’) // G, turn left forward
{md.setSpeeds(vel/2,vel);det = check();}

while (det == ‘H’) // H, turn left back
{md.setSpeeds(-vel/2,-vel);det = check();}

while (det == ‘S’) // S, stop
{md.setSpeeds(0,0);det = check();}

//---------------------Toggle switch code------------------//
/* while (det == ‘U’)
{digitalWrite(power, HIGH);det = check();}
while (det == ‘u’)
{digitalWrite(power, LOW);det = check();}*/
//---------------------Mains Power------------------//
while (det == ‘W’)
{digitalWrite(overdrive, HIGH);det = check();}
while (det == ‘w’)
{digitalWrite(overdrive, LOW);det = check();}
}

int check()
{if (Serial.available() > 0) {dataIn = Serial.read();
if (dataIn == ‘F’){determinant = ‘F’;}
else if (dataIn == ‘B’){determinant = ‘B’;}else if (dataIn == ‘L’){determinant = ‘L’;}
else if (dataIn == ‘R’){determinant = ‘R’;}else if (dataIn == ‘I’){determinant = ‘I’;}
else if (dataIn == ‘J’){determinant = ‘J’;}else if (dataIn == ‘G’){determinant = ‘G’;}
else if (dataIn == ‘H’){determinant = ‘H’;}else if (dataIn == ‘S’){determinant = ‘S’;}
else if (dataIn == ‘0’){vel = 400;}else if (dataIn == ‘1’){vel = 380;}
else if (dataIn == ‘2’){vel = 340;}else if (dataIn == ‘3’){vel = 320;}
else if (dataIn == ‘4’){vel = 280;}else if (dataIn == ‘5’){vel = 240;}
else if (dataIn == ‘6’){vel = 200;}else if (dataIn == ‘7’){vel = 160;}
else if (dataIn == ‘8’){vel = 120;}else if (dataIn == ‘9’){vel = 80;}
else if (dataIn == ‘q’){vel = 40;}else if (dataIn == ‘U’){determinant = ‘U’;}
else if (dataIn == ‘u’){determinant = ‘u’;}else if (dataIn == ‘W’){determinant = ‘W’;}
else if (dataIn == ‘w’){determinant = ‘w’;}}return determinant;}

Can you post your code between code tags, and tell us what error you get when you try to compile the sketch?

this is not actually my codes, it's from someone else, it says i cant compile as there is no such file or directory for the DualVNH5019MotorShield.h

as there is no such file or directory for the DualVNH5019MotorShield.h

That means that you have to:
Download and install the library in the proper place.
Post your code correctly. The fact that you stole it is no excuse for not posting it correctly.
Engage your brain, if you have one, when posting here. Everyone that posts here needs help. Help me is a stupid thread title.

in the Arduino IDE you can do CTRL-T to autoformat the code

makes it more readable.

Thank you all for helping

Have you located the library that the code uses?