[Help] Attempt to index ? (a nil value)

Ok, so I am very new to ComputerCraft so I am still learning, but I'm currently trying to write a program for a mining turtle to make it dig a pit for me, sort of like the "exctract" command (the file is named "go"). I am getting "go:3: Attempt to index ?(a nil value)" when i try to run it and I don't understand the problem =/
It looks like this…

[attachment=667:friggen program.png]

[attachment=668:the error.PNG]


function digStraight()
for r=1,53 do
turtle.dig()
turtle.forward()
end
end

for i=1,40 do
for j=1,97 do
for k=1,1 do
for m=1,49 do
digStraight()
turtle.turnRight()
turtle.dig()
turtle.forward()
turtle.turnRight()
digStraight()
turtle.turnLeft()
turtle.dig()
turtle.forward()
turtle.turnLeft()
end
turtle.turnLeft()
end
turtle.forward()
end
turtle.turnRight()
turtle.digDown()
turtle.down()
end

You are running this on a turtle, correct? Line three looks fine. Did you retype this onto the forums? If so, you may have accidentally fixed a typo when you copied it over. Check through the original code (especially line three) to ensure that everything is spelled and capitalized correctly.

I don't see a problem with it either =/ its just "turtle.dig()"…. I put a pic of the actual code up, maybe you can pick out the issue there….

This is being run on a Tekkit multiplayer server if that makes any difference….

Did you mess around with bios.lua ?? It's the only thing i can see …

no i haven't messed with anything, i built a mining turtle, a disk drive, and a floppy disk. Did cd disk, edit go. Wrote it….. (on a side note it's reassuring to know I'm not the only one that doesn't see an issue =P)

Use pastebin and then copy it onto your turtle (let's hope http api is enabled) and check if it gives an error? Maybe the disk drive is faulty. I don't get one when i copy your code without edits.

Yeah, you could always try copying it directly to the mining turtle, but I'm not really seeing any glaring issues with the code there, as long as it's being run on a turtle, not a computer.

omg such a fail -.-….. i was trying to run it on a computer, the turtle was in my inventory the whole time…. ugh thanks for the help guys really appreciated!

Frusterbator, on 12 November 2012 - 08:09 AM said:

omg such a fail -.-….. i was trying to run it on a computer, the turtle was in my inventory the whole time…. ugh thanks for the help guys really appreciated!

:unsure:/>/> ^_^/>/> :(/>/>