Hello,
please use the ```````` tags when you provide a sample. Luckily your code is rather simple but it’s not really readable as such.
Could you also detail the error code CS1107, with, for example, what Unity outputs you as an error. We really don’t even try to remember the error codes. Plus my google search gives me something truly different.
If I had to guess, your deltatime is mispelled: Time.deltaTime
Your t should be uppercase.
Beware there’s several instances of sloppy typing that are going to block your success in mysterious ways.
If you are following tutorials, you have got to follow them to the letter, including capitalization. This process will save you a lot of time:
How to do tutorials properly:
Tutorials are a GREAT idea. Tutorials should be used this way:
Step 1. Follow the tutorial and do every single step of the tutorial 100% precisely the way it is shown. Even the slightest deviation (even a single character!) generally ends in disaster. That’s how software engineering works. Every single letter must be spelled, capitalized, punctuated and spaced (or not spaced) properly. Fortunately this is the easiest part to get right. Be a robot. Don’t make any mistakes. BE PERFECT IN EVERYTHING YOU DO HERE.
If you get any errors, learn how to read the error code and fix it. Google is your friend here. Do NOT continue until you fix the error. The error will probably be somewhere near the parenthesis numbers (line and character position) in the file. It is almost CERTAINLY your typo causing the error, so look again and fix it.
Step 2. Go back and work through every part of the tutorial again, and this time explain it to your doggie. See how I am doing that in my avatar picture? If you have no dog, explain it to your house plant. If you are unable to explain any part of it, STOP. DO NOT PROCEED. Now go learn how that part works. Read the documentation on the functions involved. Go back to the tutorial and try to figure out WHY they did that. This is the part that takes a LOT of time when you are new. It might take days or weeks to work through a single 5-minute tutorial. Stick with it. You will learn.
Step 2 is the part everybody seems to miss. Without Step 2 you are simply a code-typing monkey and outside of the specific tutorial you did, you will be completely lost.
Of course, all this presupposes no errors in the tutorial. For certain tutorial makers (like Unity, Brackeys, Imphenzia, Sebastian Lague) this is usually the case. For some other less-well-known content creators, this is less true. Read the comments on the video: did anyone have issues like you did? If there’s an error, you will NEVER be the first guy to find it.
Beyond that, Step 3, 4, 5 and 6 become easy because you already understand!
Oh yeah, the class name didn’t start with an uppercase either. So, BigProGameMakerIGuess, remember that c# is case-sensitive and classes should always start with an uppercase and having the same name than the file (so your file must be called Mouselook.cs). Good practice is to uppercase every word, so MouseLook.cs.
A good place to start is learning the c# naming convention. It really decreases the probability of encountering these errors.