[Help] Help with DG.Tweening & DOFade()

I recently imported a game from the Asset Store, but
I get the following Errors:

Can anyone help? Thank you.

Hi Dan,

Error CS0246: The type or namespace name ‘DG’ could not be found…
This happens if you put the DOTween folder inside the Plugins directory. Keep it out of there, and also out of the Resources and Editor folders

…copied from;

Hope this is of use.

The problem was that I needed to install DOTween from the Asset Store.
Now that DOTween is installed I get the following DOFade() error:

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