8 replies to this topic

[mastrkillerr]

Title: Lua Error Debugging Needed

I am trying to create a new OS from different code ive written and or found online, and what I have so far has all been taken from different coded programs and pasted together. So without modification I get an error about line 137 saying "MOPT IS NIL"
I understand that nil means not possible, not a function, blah blah blah. My confusion is that mopt is used in a program ive used before perfectly fine, also in the program i took the code from it works perfectly fine. Plz help me find a solution!!! D:

A pastebin of the code is http://pastebin.com/upTVAHWU

EDIT: the full error is:


error: attempt to index global `mopt' (a nil value)

[Lyqyd]

Interesting. Let's see the program you took the code from as well.

[Engineer]

Look for some help over on the forums in programs and then DelOS..?

[mastrkillerr]

The menu system I got the most code from is at http://pastebin.com/nSmWUV6m
The OS I got the Download page code for is at http://pastebin.com/4EG3tBQz

I dont understand how It changed.... I never even messed with this line of code...

[mastrkillerr]

Engineer, on 19 February 2013 - 07:14 AM, said:

Look for some help over on the forums in programs and then DelOS..?

Yes I used some DelOS code. And Ive looked on the forums, theres nothing about perfectly good code going all wonky.

[Lyqyd]

How are you running this? Just straight from the command-line? You're not doing anything crazy like trying to load it as an API, right?

[mastrkillerr]

Just command line. Eventually going to put it as the startup program

[Lyqyd]

Okay. If nobody else sees anything vastly wrong with this in the meantime, I'll try to remember to poke at it a little bit in ComputerCraft this evening.

[mastrkillerr]

Ok. I should probably mention that I changed that line to just say

drawMain() 

and it worked at getting the error out, but then you couldnt enter any of the pages for the menu. I figured Id rather solve an error then be frozen at the main menu.