I know this is your first post but a number of things first:
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Please Don’t post pointless polls.
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Please don’t post general scripting issues on the 2D forum. Please use the scripting forum instead.
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Please post code using code-tags i.e. don’t take screenshots of code because it’s impossible to reference/copy them to refer to them for you.
I’ll move your post for you.
If you have a problem like this then use the API docs. As you would see, Input.GetAxisRaw returns a float value. You are using it in a if condition which requires a bool (true/false). The compiler is telling you that it cannot convert a float value (real number) to a true/false.
If you are following a tutorial, I would check it again. That part of the code is normally a check for a KeyDown which tells you if the key was pressed (true/false) for instance.