Sdk 18.0.3 to sdk 20.0.0

How to update expo SDK 18.0.3 to 20.0.0 in a current development environment?

I had tried using this article:

But not able to update.

Why weren’t you able to update? What errors did you get?
Did you try upgrading from 18 -> 19 and then 19 -> 20?

this is error.