Robot Programming Problem

[pcman312 1]

I'm attempting to write my first programs for a robot, but I'm running into a wall (figuratively). I wrote the following test script and saved it on a floppy:

for i=0,10 do
  robot.forward()
end

for i=0,10 do
  robot.back()
end

The floppy is mounted in the robot, but whenever I attempt to execute it, I receive this error:

/mnt/fa8/robot_sandbox.lua:2: attempt to index global 'robot' (a nil value)

If I run it manually after running lua directly, it runs fine. What am I missing? Do I need an import of some sort in the script?

[pcman312 1]

Nevermind, I figured it out. For anyone that may find this forum, this is what I did:

local robot = require("robot")

for i=0,10 do
  robot.forward()
end

for i=0,10 do
  robot.back()
end

[Wobbo 8]

I want to elaborate on this answer a bit, because I guess we will get questions like this more often:

 

You have to require any library that is not mentioned on the page about standard libraries. The lua prompt tries to require libraries for you, so you won't have to do it yourself, this makes for easier testing. 

So if you have a similar problem with a different library, do with your library what pcman312 did for robot, because that is the correct way to load a library.