[FIXED] Cannot get property 'ndkVersion' on extra properties extension as it does not exist with... react-native 0.64.0

Issue

Upgrading from react-native 0.63.4 to 0.64.0

My steps:

1. npx react-native run-android to version 0.64.0 - this step succeeded

2.npx react-native upgrade - this step succeeded

start="3">
1. npx react-native run-android - this step failed with following 2 errors:

BTW everything works just fine on iOS simulator.

Solution

From my own experience, after migrating 2 very large RN apps (with at least 20 different libraries with linking included) I've concluded that the next solution is the safest but the slowest solution:

So on trying to implement npx react-native upgrade I got warnings/errors which tell that upgrade couldn't succeed - that could happen due to files where I had committed some changes. The solution is to create a brand new React Native project (better to create with the same bundle id/name as your current) and to copy/paste the source code from the previous project into the brand new one and after that to link each library one-by-one and make one-by-one build after each library so you keep track of whole process and don't get a large list of errors coming from any of them on app build.

Answered By - spatak
Answer Checked By - Clifford M. (JavaFixing Volunteer)