1.Delete the .gradle folder inside the android folder ie android>.gradle
2.In the project build.gradle file, upgrade ur class path appropriately based on the blog in the link above, e.g i upgraded to classpath 'com.android.tools.build:gradle:4.0.1'
3.Upgrade the distribution url too. Its in android>gradle>gradle-wrapper.properties file appropriately. e.g i upgraded it to distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip