I need some help

First, I started a few days ago and im trying to do my first script.
This is the problem, but i cant fix it
"warning CS0642: Possible mistaken empty statement"

here my script (im trying to do the ball to jump)

Rigidbody2D rigi;
public float Jump;

// Start is called before the first frame update
void Start()
{
if (!Input.GetKeyDown(KeyCode.Space));

rigi.AddForce(Vector2.up * Jump, ForceMode2D.Impulse);
}

// Update is called once per frame
void Update()
{

}

 

Hey and welcome!

You are saying "if condition do ... semicolon" here, which is likely what the compiler complains about.

Please use code tags when posting code examples in the future

Edit:
To make this clear, you probably meant to do this:

Code (CSharp):

1.     void Start()
2.     {
3.         if (!Input.GetKeyDown(KeyCode.Space)){
4.             rigi.AddForce(Vector2.up * Jump, ForceMode2D.Impulse);
5.         }
6.     }

 

Here:

if (!Input.GetKeyDown(KeyCode.Space));

If statement is not supposed to have a semi-colon at the end.

 

Welcome! We were all there once as well. I urge you to jump in and try as many different random tutorials that you can get your hands on. There are literally millions on Youtube.

As Yoreki and kdgalla above pointed out, it's just one character throwing you off, and that one character would certainly make your script fail, which is why the compiler warned you.

Tutorials and example code are great, but keep this in mind to maximize your success and minimize your frustration:

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. If you want to learn, you MUST do Step 2.

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!

Finally, when you have errors...

The complete error message contains everything you need to know to fix the error yourself.

Always start with the FIRST error in the console window, as sometimes that error causes or compounds some or all of the subsequent errors.

The important parts of the error message are:

- the description of the error itself (google this; you are NEVER the first one!)
- the file it occurred in (critical!)
- the line number and character position (the two numbers in parentheses)
- also possibly useful is the stack trace (all the lines of text in the lower console window)

All of that information is in the actual error message and you must pay attention to it. Learn how to identify it instantly so you don't have to stop your progress and fiddle around with the forum.

Remember: NOBODY here memorizes error codes. That's not a thing. The error code is absolutely the least useful part of the error. It serves no purpose at all. Forget the error code. Put it out of your mind.

 

I'm really grateful for the tips, im trying my best and u help me a lot now! I'll follow the steps one by one <3 and again, thank u

 

hey, thank u <3 im trying my best and u help me a lot!

 

tysm <3 u help a lot!!