Debit card system

So I've been making a debit card system for a private server I play on but I keep getting this error when I try to withdraw

startup:30:attempt to index ? (a nil value)

That is on the server computer that holds the information.

here is the code for the ATM:
http://pastebin.com/xYh6Vyaq

here is the code for the server:
http://pastebin.com/1CFfDF3T

Thank you! :)/>

Lemme check out your code. The error means you are trying to index a key in a table that is nil.

EDIT: Why are you unserializing a string? (readAll returns a string)

EDIT 2: That might actually be the issue. I only took a brief look at the code, though. Did you mean to serialize it instead?

EDIT 3: The error should be on line 30, inside the checkPin() function.

I am unserializing it to get it back to table form

Errm…

You dont declare the "ids" table before you're calling them.

check this for an example:


before the if statement:

while true do
local reply,command,distance = rednet.receive()
print(command)

after:

elseif command == "change_balance" then
		sleep(1)
		rednet.send(reply,"id:pin:amount")
		local i,m,d = rednet.receive()
		local id = m:sub(1,5)
		local pin = m:sub(7,10)
		local amount = m:sub(12,#m)
		loadIds()
		sleep(1)
		checkPin(reply,id,pin,updateBalance,id,amount)


REST OF THE CODE...

so to fix this, you must declare a table with the name of "ids"


I hope that fixed it.

bobmandude9889, on 22 December 2013 - 11:36 PM said:

I am unserializing it to get it back to table form

Yeah, that would be mixing up the two functions again. Sorry for that :(/>.