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

This Is Because compileSdkVersion , buildToolsVersion and Dependecies implementations are not match You Have to done like this i have 28 library then

compileSdkVersion 28
targetSdkVersion   28
buildToolsVersion  28.0.3
implementation 'com.android.support:design:28.0.0'
implementation 'com.android.support:appcompat-v7:28.0.0'

If we You Use Any where less than 28 this error should occured so please try match library in all.