Old door knob wont come out? i tried to get the aged knob off my bedroom door. i...

i tried to get the aged knob off my bedroom door. i notice the screw head is GONE. I drilled it out. it have released from the guard of the knob, but yet the entry still wont budge! there are no other screw to unscrew. I try to pry it off, it wont work, and its destroying the cheap ole wood of the door! How can i fix this? or should i turn a 10 dollar project into an 80 dollar one by getting a up to date door. help! gratitude
Answers:    cut your losses and get a topical door, you're only going to ruin the ripened one and have to go and get a new one anyway
You involve to remove the latch before the knob will release!