HELP!!!!Compiling Error

I was using this guy's tutorial trying to make my servo turn, but after I upload my codes, this message pop up. What's going on???

Tutorial : How to Control Servos | Arduino Tutorial - YouTube

My code: #include <Servo.h>

Servo myservo;
void seup()
{
myservo.attach (9);

}
void loop()
{
myservo.writeMicroseconds (1500);
delay(1000);

myservo.writeMicroseconds(1000);
delay(1000);

myservo.writeMicroseconds(2000);
delay(1000);
}

The error message shown:

core.a(main.cpp.o): In function main': C:\Program Files (x86)\Arduino\hardware\arduino\cores\arduino/main.cpp:40: undefined reference to setup'

You misspelled setup.

C:\Program Files (x86)\Arduino\hardware\arduino\cores\arduino/main.cpp:40: undefined reference to `setup'

It is telling you right there.