Assuming this is your entire code and that you are not using the competition template, the code should be inside int main()
int main(){
vex::task::sleep(2000);
Brain.Screen.print(“User Program has Started.”);
LeftFront.setVelocity(50, vex::velocityUnits::pct);
RightFront.setVelocity(50, vex::velocityUnits::pct);
LeftFront.spin(vex::directionType::fwd);
RightFront.spin(vex::directionType::fwd);
vex::task::sleep(3000);
LeftFront.stop();
RightFront.stop();
Brain.Screen.newLine();
Brain.Screen.print("User Program has Ended.");
while(1) {
vex::task::sleep(100);
}
task::sleep(1000);
}
After the brain prints out User Program has Ended it will run through the while loop infinite times. (It will keep running vex::task::sleep(100); forever)