Our arms and claws won't work

void usercontrol( void ) {

// User control code here, inside the loop

while(true) {
    LeftFront.spin(vex::directionType::rev, Controller1.Axis3.value(), vex::velocityUnits::pct); //(Axis3+Axis4)/2
    RightFront.spin(vex::directionType::fwd, Controller1.Axis2.value(), vex::velocityUnits::pct);//(Axis3-Axis4)/2
    
    vex::task::sleep(20); 
}






//Use these variables to set the speed of the arm and claw.
int armSpeedPCT = 100;
int clawSpeedPCT = 100;

while(true) {
    if(Controller1.ButtonL1.pressing()) {
        Arm.spin(directionType::fwd, armSpeedPCT, velocityUnits::pct);
    }
    else if(Controller1.ButtonL2.pressing()) {
        Arm.spin(directionType::rev, armSpeedPCT, velocityUnits::pct);
    }
    else {
        Arm.stop(brakeType::brake);
    }

    if(Controller1.ButtonR1.pressing()) {
        Claw.spin(directionType::fwd, clawSpeedPCT, velocityUnits::pct);
    }
    else if(Controller1.ButtonR2.pressing()) {
        Claw.spin(directionType::rev, clawSpeedPCT, velocityUnits::pct);
    }
    else {
        Claw.stop(brakeType::brake);        
    }
    
    if(Controller1.ButtonL1.pressing()) {
        Arm1.spin(directionType::fwd, armSpeedPCT, velocityUnits::pct);
    }
    else if(Controller1.ButtonL2.pressing()) {
        Arm1.spin(directionType::rev, armSpeedPCT, velocityUnits::pct);
    }
    else {
        Arm1.stop(brakeType::brake);
    }

    if(Controller1.ButtonR1.pressing()) {
        Claw1.spin(directionType::fwd, clawSpeedPCT, velocityUnits::pct);
    }
    else if(Controller1.ButtonR2.pressing()) {
        Claw1.spin(directionType::rev, clawSpeedPCT, velocityUnits::pct);
    }
    else {
        Claw1.stop(brakeType::brake);        
    }


    task::sleep(20);
}

}
Our arm and claw wouldn’t move

update

void usercontrol( void ) {

// User control code here, inside the loop

while(true) {
    LeftFront.spin(vex::directionType::rev, Controller1.Axis3.value(), vex::velocityUnits::pct); //(Axis3+Axis4)/2
    RightFront.spin(vex::directionType::fwd, Controller1.Axis2.value(), vex::velocityUnits::pct);//(Axis3-Axis4)/2
    
    vex::task::sleep(20); 
}

{




//Use these variables to set the speed of the arm and claw.
int armSpeedPCT = 100;
int clawSpeedPCT = 100;

while(true) {
    if(Controller1.ButtonL1.pressing()) {
        Arm.spin(directionType::fwd, armSpeedPCT, velocityUnits::pct);
    }
    else if(Controller1.ButtonL2.pressing()) {
        Arm.spin(directionType::rev, armSpeedPCT, velocityUnits::pct);
    }
    else {
        Arm.stop(brakeType::brake);
    }

    if(Controller1.ButtonR1.pressing()) {
        Claw.spin(directionType::fwd, clawSpeedPCT, velocityUnits::pct);
    }
    else if(Controller1.ButtonR2.pressing()) {
        Claw.spin(directionType::rev, clawSpeedPCT, velocityUnits::pct);
    }
    else {
        Claw.stop(brakeType::brake);        
    }
    
    if(Controller1.ButtonL1.pressing()) {
        Arm1.spin(directionType::fwd, armSpeedPCT, velocityUnits::pct);
    }
    else if(Controller1.ButtonL2.pressing()) {
        Arm1.spin(directionType::rev, armSpeedPCT, velocityUnits::pct);
    }
    else {
        Arm1.stop(brakeType::brake);
    }

    if(Controller1.ButtonR1.pressing()) {
        Claw1.spin(directionType::fwd, clawSpeedPCT, velocityUnits::pct);
    }
    else if(Controller1.ButtonR2.pressing()) {
        Claw1.spin(directionType::rev, clawSpeedPCT, velocityUnits::pct);
    }
    else {
        Claw1.stop(brakeType::brake);        
    }


    task::sleep(20);
}

}

}

You have two infinite loops but the second one (with all your arm/claw code) never executes since the program stays in the first while loop. Put all you claw/arm code inside the same loop as the movement control and bin the second while loop.

Yep I would move it all into one

Please don’t keep commenting unhelpful stuff eg. Repeating what other people say or not knowing