can someone help me with something in unity 2D programming with Microsoft visual

Question

I have created a character in unity for a 2D game with top down view, to put movement commands I had to use Microsoft visual and use the C # programming language, when I put the command
{
Public float speed = 1.0f;
Private rigidbody2d rb2d;
}
The "rigidbody2d" does not recognize me as a command nor does the "rb2d" and other commands does not recognize me as one, and I have seen tutorial videos to see what the problem is but none gives me a solution, I have tried other commands that I have seen on Youtube but they are always the same, if someone can help me to solve this problem or if you can give me a command so that my player can move freely with the keys I will be very grateful, if you need more information about the command I can put the command whole

Answer 1

Is 'rigidbody2d' all lower case in your code?

Answer 2

Capitalize the class name.

https://docs.unity3d.com/ScriptReference/Rigidbody2D.html

Answer 3

Hey Agustin, are you still encountering this issue?
Has Gordon's response solved the problem by instead using RigidBody2D?

If not, does your IDE detect other classes such as, Vector2 or Vector3
Do you have "using UnityEngine" at the top of your program?

Answer 4

I saw in a YouTube video how the command did and when he wrote "rigidb" he already had the option to complete the word with "Rigidbody2D", that option did not work for me

Answer 5

Another thing is that when the video completed the word "Rigidbody2d" it changed color to green, it did not change it for me