ERROR in
action number 2
of Create Event
for object enemy_bulletX:

Error in expression:obj_myplane.x
  position 1: Unknown variable obj_myplane

while (obj2.y != obj1.y-192)
if keyboard_check(vk_up)
{
with obj2{
                instance_destroy()
              }
   instance_create(obj1.x,obj1.y-64,platform)
}

for (i = sprite_width; i <= speed; i += sprite_width)    
{    
        if place_meeting(x + lengthdir_x(i,direction), y + lengthdir_y(i,direction), o_wc)    
         {
           x += lengthdir_x(i, direction);    
            y += lengthdir_y(i, direction);
               
            event_perform(ev_collision, o_wc);    
        }    
}
//Где o_wc - собственно стена