TypeError: Error #1009: Cannot access a property or method of a null object reference.

Report · Apr 19, 2022

i need a help ! how to solve in this error

TypeError: Error #1009: Cannot access a property or method of a null object reference.
at RECOVER_assignment1_crossword_fla::MainTimeline/Play()[RECOVER_assignment1_crossword_fla.MainTimeline::frame3:11]

here is my code:

import flash.events.Event;

stop();
var score: int = 0;
var correctInc: int = 10;
score_txt_.text=score.toString();

stage.addEventListener(Event.ENTER_FRAME, Play);
function Play(e:Event) :void {

if (emotional_e_txt.text == ("E").toString() &&
emotional_m_txt.text == ("M").toString() &&
emotional_o_txt.text == ("O").toString() &&
emotional_t_txt.text == ("T").toString() &&
emotional_i_txt.text == ("I").toString() &&
emotional_o1_txt.text == ("O").toString() &&
emotional_n_txt.text == ("N").toString() &&
emotional_a_txt.text == ("A").toString() &&
emotional_l_txt.text == ("L").toString()) {
emobox_mc.gotoAndStop(3);
score = correctInc;

} else if(emotional_e_txt.text == ("").toString() &&
emotional_m_txt.text == ("").toString() &&
emotional_o_txt.text == ("").toString() &&
emotional_t_txt.text == ("").toString() &&
emotional_i_txt.text == ("").toString() &&
emotional_o1_txt.text == ("").toString() &&
emotional_n_txt.text == ("").toString() &&
emotional_a_txt.text == ("").toString() &&
emotional_l_txt.text == ("").toString()){
emobox_mc.gotoAndStop(1);
} else {
emobox_mc.gotoAndStop(2);
}

if (depresion_d_txt.text == ("D").toString() &&
depresion_p_txt.text == ("P").toString() &&
depresion_r_txt.text == ("R").toString() &&
depresion_e_txt.text == ("E").toString() &&
depresion_s_txt.text == ("S").toString() &&
depresion_i_txt.text == ("I").toString() &&
depresion_o_txt.text == ("O").toString() &&
depresion_n_txt.text == ("N").toString()) {
depbox_mc.gotoAndStop(3);
score += correctInc;

} else if (depresion_d_txt.text == ("").toString() &&
depresion_p_txt.text == ("").toString() &&
depresion_r_txt.text == ("").toString() &&
depresion_e_txt.text == ("").toString() &&
depresion_s_txt.text == ("").toString() &&
depresion_i_txt.text == ("").toString() &&
depresion_o_txt.text == ("").toString() &&
depresion_n_txt.text == ("").toString()) {
depbox_mc.gotoAndStop(1);
} else {
depbox_mc.gotoAndStop(2);
}

if (fatigue_f_txt.text == ("F").toString() &&
fatigue_i_txt.text == ("I").toString() &&
fatigue_t_txt.text == ("T").toString() &&
fatigue_g_txt.text == ("G").toString() &&
fatigue_u_txt.text == ("U").toString() &&
fatigue_e_txt.text == ("E").toString()) {
fatbox_mc.gotoAndStop(3);
score += correctInc;

} else if (fatigue_f_txt.text == ("").toString() &&
fatigue_t_txt.text == ("").toString() &&
fatigue_i_txt.text == ("").toString() &&
fatigue_g_txt.text == ("").toString() &&
fatigue_u_txt.text == ("").toString() &&
fatigue_e_txt.text == ("").toString()) {
fatbox_mc.gotoAndStop(1);
} else {
fatbox_mc.gotoAndStop(2);
}

if (medication_m_txt.text == ("M").toString() &&
medication_e_txt.text == ("E").toString() &&
medication_d_txt.text == ("D").toString() &&
medication_c_txt.text == ("C").toString() &&
medication_a_txt.text == ("A").toString() &&
medication_t_txt.text == ("T").toString() &&
medication_i_txt.text == ("I").toString() &&
medication_o_txt.text == ("O").toString() &&
medication_n_txt.text == ("N").toString()) {
medbox_mc.gotoAndStop(3);
score += correctInc;

} else if (medication_m_txt.text == ("").toString() &&
medication_e_txt.text == ("").toString() &&
medication_d_txt.text == ("").toString() &&
medication_c_txt.text == ("").toString() &&
medication_a_txt.text == ("").toString() &&
medication_t_txt.text == ("").toString() &&
medication_i_txt.text == ("").toString() &&
medication_o_txt.text == ("").toString() &&
medication_n_txt.text == ("").toString()) {
medbox_mc.gotoAndStop(1);
} else {
medbox_mc.gotoAndStop(2);
}

if (physical_p_txt.text == ("P").toString() &&
physical_h_txt.text == ("H").toString() &&
physical_y_txt.text == ("Y").toString() &&
physical_s_txt.text == ("S").toString() &&
physical_c_txt.text == ("C").toString() &&
physical_a_txt.text == ("A").toString() &&
physical_l_txt.text == ("L").toString()) {
phybox_mc.gotoAndStop(3);
score += correctInc;

} else if (physical_p_txt.text == ("").toString() &&
physical_h_txt.text == ("").toString() &&
physical_y_txt.text == ("").toString() &&
physical_s_txt.text == ("").toString() &&
physical_c_txt.text == ("").toString() &&
physical_a_txt.text == ("").toString() &&
physical_l_txt.text == ("").toString()) {
phybox_mc.gotoAndStop(1);
} else {
phybox_mc.gotoAndStop(2);
}

score_txt_.text=score.toString();
}

done_btn.addEventListener(MouseEvent.CLICK, goNext);

function goNext(event:MouseEvent):void
{
gotoAndStop(4);
}

i hope someone can help me. Thank you

Report · Apr 19, 2022

Hi.

My best guess is that when you go to another frame in the main timeline, some instance becomes inaccessible because the enterFrame event continues firing. You should remove it before navigating away from the current frame.

Please let us know.

Regards,

JC

Report · Apr 19, 2022

and you should learn bracket notation to condense and make your code easier to read and debug.