Error:(9, 5) error: resource android:attr/dialogCornerRadius not found

Question

So I installed android studio 3.0.1 and as soon as it opened the gradle built and showed the following errors. I tried adding dependencies such as design and support but in

Answer 1

I was having the same issue while adding a mapbox navigation API and resolved this issue by going to: file>project Structure and then setting the compile sdk version and build tool version to the latest. And here is the screenshot:

Hope it helps.