Could not find com.android.support:appcompat-v7:25.3.1

Question

I suddenly started getting this error when trying to build. This was all working a few weeks ago with no changes that I know of. The issue seems to be related to react

Answer 1

To solve this problem:

1. Open package.json and edit the react version to:

   "react": "16.0.0-alpha.3", "react-native": "0.43.1",

2. Delete node_modules directory

3. And re-install npm with the command npm install

4. In Addition: If you get a app:compileDebugJava ERROR, run react-native upgrade

(Got the solution from this github page and it worked for me)