Compiler errors

I just downloaded Unity and am brand new/largely clueless when it comes to this sort of thing. I believe that I accidentally deleted something (apparently important) while trying to fix a Compiler error (Joystick, I believe it was labled, but I’m not entirely sure) and now these errors are popping up; 9 of the former and 2 of the latter. I’ve uninstalled and re-installed the program but that did not appear to help.

Assets/MobileInput/Scripts/PlatformSpecific/StandaloneInput.cs(14,30): error CS0115: `UnitySampleAssets.CrossPlatformInput.PlatformSpecific.StandaloneInput.GetButton(string)’ is marked as an override but no suitable method found to override

Assets/MobileInput/Scripts/Joystick.cs(24,13): error CS0246: The type or namespace name `CrossPlatformInputManager’ could not be found. Are you missing a using directive or an assembly reference?

Can someone tell me what all this means and how to fix it?

This is hard to know. Is it one of unity’s premade scripts? Try reimporting the character controller asset if you are using that and re import that script.