Arduino Uno+miniEngine 1+easydriver+lcd keypad shield (camer) why error code???

Hello! Why is the error code?

/*

See www.openmoco.org for more information

(c) 2011 Airic Lenz

The 1st version of this code, dealing with core functionalities,
was heavily inspired by the OpenMoCo Engine by C.A. Church
and is basically based on it. Thank you for your great work!

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses/.

*/

// ===================================================================================
void camera_focus() {

// enpower the focus pin
digitalWrite(FOCUS_PIN, HIGH);

// remember the starting time
action_start_time = millis();

// set the “i am focussing” flag to on
action_status |= B01000000;

}

// ===================================================================================
// this function does not close the focus line because it will be handled in the
// function camera_shoot - called directly after this methode
void camera_stop_focus() {

// toggle the “i am focussing” flag to off B01000000
bitClear(action_status, 6);

// now shoot the camera
camera_shoot();
}

// ===================================================================================
void camera_shoot() {

// close or open the focus line while shooting (relevant for shootimg behavior of different camera brands)
if (camera_status & B10000000) {
digitalWrite(FOCUS_PIN, HIGH);
} else {
digitalWrite(FOCUS_PIN, LOW);
}

// enpower the camera pin
digitalWrite(CAMERA_PIN, HIGH);

// remember the starting time
action_start_time = millis();

// set the “i am exposing” flag to on
action_status |= B00010000;

}

// ===================================================================================
// blocking function for test shots
void camera_shoot(long exposure) {

camera_shoot();

delay(exposure);

// depower the camera pin
digitalWrite(CAMERA_PIN, LOW);
// depower the focus pin
digitalWrite(FOCUS_PIN, LOW);

// toggle the “i am exposing” flag to off B00010000
bitClear(action_status, 4);
}

// ===================================================================================
void camera_stop_shoot() {

// depower the camera pin
digitalWrite(CAMERA_PIN, LOW);
// depower the focus pin
digitalWrite(FOCUS_PIN, LOW);

// toggle the “i am exposing” flag to off B00010000
bitClear(action_status, 4);

// increment the shoot counter
camera_shoot_count++;

// check if we reached the maximum shot number
if ( (camera_shot_max != 0) &&
(camera_shoot_count >= camera_shot_max) ) {

stop_program();

// print a message: “Max camera shot limit reached!”;
print_message(97, 96, 3);

return;
}

// if we want to have a past exposure time than start it now
// if we are not in continuous mode
if (!(action_status & B10000000)) {

// do the next step in the cycle
camera_start_post();
}
}

// ===================================================================================
void camera_start_post() {

// set the past exposure flag
if (camera_exp_post > 0) {
action_status |= B00000100;

// otherwise start the motor phase
} else {

motor_start();

}
}

// ===================================================================================
void camera_stop_post() {

// clear camera post delay bit
bitClear(action_status, 2);

// and start the motor
motor_start();

}

error messages
sketch_feb13a.ino: In function ‘void camera_focus()’:
sketch_feb13a:32: error: ‘FOCUS_PIN’ was not declared in this scope
sketch_feb13a:35: error: ‘action_start_time’ was not declared in this scope
sketch_feb13a:38: error: ‘action_status’ was not declared in this scope
sketch_feb13a.ino: In function ‘void camera_stop_focus()’:
sketch_feb13a:49: error: ‘action_status’ was not declared in this scope
sketch_feb13a.ino: In function ‘void camera_shoot()’:
sketch_feb13a:61: error: ‘camera_status’ was not declared in this scope
sketch_feb13a:62: error: ‘FOCUS_PIN’ was not declared in this scope
sketch_feb13a:64: error: ‘FOCUS_PIN’ was not declared in this scope
sketch_feb13a:68: error: ‘CAMERA_PIN’ was not declared in this scope
sketch_feb13a:71: error: ‘action_start_time’ was not declared in this scope
sketch_feb13a:74: error: ‘action_status’ was not declared in this scope
sketch_feb13a.ino: In function ‘void camera_shoot(long int)’:
sketch_feb13a:88: error: ‘CAMERA_PIN’ was not declared in this scope
sketch_feb13a:90: error: ‘FOCUS_PIN’ was not declared in this scope
sketch_feb13a:93: error: ‘action_status’ was not declared in this scope
sketch_feb13a.ino: In function ‘void camera_stop_shoot()’:
sketch_feb13a:102: error: ‘CAMERA_PIN’ was not declared in this scope
sketch_feb13a:104: error: ‘FOCUS_PIN’ was not declared in this scope
sketch_feb13a:108: error: ‘action_status’ was not declared in this scope
sketch_feb13a:111: error: ‘camera_shoot_count’ was not declared in this scope
sketch_feb13a:114: error: ‘camera_shot_max’ was not declared in this scope
sketch_feb13a:117: error: ‘stop_program’ was not declared in this scope
sketch_feb13a:120: error: ‘print_message’ was not declared in this scope
sketch_feb13a.ino: In function ‘void camera_start_post()’:
sketch_feb13a:139: error: ‘camera_exp_post’ was not declared in this scope
sketch_feb13a:140: error: ‘action_status’ was not declared in this scope
sketch_feb13a:145: error: ‘motor_start’ was not declared in this scope
sketch_feb13a.ino: In function ‘void camera_stop_post()’:
sketch_feb13a:154: error: ‘action_status’ was not declared in this scope
sketch_feb13a:157: error: ‘motor_start’ was not declared in this scope