tree:8: Expected number

I made a program that would automatically cut down trees and such (pastebin.com/jf9YpLNH) and it gives me this error code tree:8: Expected number (I named it tree). I am not sure what this means. I tried looking through the common errors section but I couldn't find the error I got. Any help is appreciated.

Split into new topic.

Thanks for trying to use the resources available to you before posting a question! The problem in your code is that turtle.getItemCount requires a slot number (1-16) as an argument, and you didn't provide one.

Thank you so much! I am new to programming and I got so bummed when it didn't work.

As Lyqyd said, turtle.getItemCount(Number) requires a number as an argument. This number must be between or equal to the values of 1 through 16 and corresponds with the 16 slots in the turtles inventory starting in the upper left slot and going left to right.