commandBlock.setCommand

Hello,
Im trying to pass a variable to commandBlock.setCommand() like this


write("please enter the amount")
local var1 = read ("*")
local var2 = ("econ sub @p ")
local var3 = (var2..var1)
commandBlock.peripheral.wrap ("left")
commandBlock.setCommand(var3)
commandBlock.runCommand()

it returns a "attempt to index ? (a nil value)"

what am i doing wrong ?

thanks for u reply in advance.

Have you enabled the command block peripheral interface in the config? Do you have OpenPeripheral installed?

Also, to wrap the peripheral, it's:

local commandBlock = peripheral.wrap("left")

Yes, i have it enabled , i can pass prewrited commands to the block but can't pass string variables to it, it just return me "attempt to index ? (a nil value)

oh and no i dont have OpenPeripheral, as the provided link doesn't work anymore.

I have OpenPeripheral installed now, but i still can't pass variables to commandBlock.setCommand()

for example if i write this :

commandBlock.peripheral.wrap ("left")
commandBlock.setCommand("econ bank create @p")
commandBlock.runCommand()

it works perfectly, the command is passed and lauched to the commandBlock.

now if try this :

write("please enter the amount")
local var1 = read ("*")
local var2 = ("econ sub @p ")
local var3 = (var2..var1)
commandBlock.peripheral.wrap ("left")
commandBlock.setCommand(var3)
commandBlock.runCommand()

and when i run the program it stop on commandBlock.setCommand(var3) line, with this error "attempt to index ? (a nil value)"

sorry im new with lua and maybe im not doing the correct method to deal with commandblocks, so any help would be apreciated.

I asked about OpenPeripheral because if you have it installed, it won't work at all.

Also, did you even read what I wrote earlier? You can't wrap a peripheral that way. Either that isn't the code you're using or you're copying your code into the forums wrong. Either way, I can't help you fix this until I see the code that you're actually using.