react-native run-android failed ? Here is the solution

I've faced a similar problem, and after spending so much time and lots of searching about this issue the only solution worked for me is:

1. Please Install the Required SDKs as shown in this below image. Configure Required SDKs
2. If You have already installed it, so you must have to update the following SDKs:
   • Android SDK Tool (update it to latest version)
   • Android SDK Platform-tools (update it to latest version)
   • Android SDK Build-tools (update it to latest version)
   • Android Support Repository under Extra folder (update it to latest version)
3. You Must have at least installed the same version Android API as the installed Android SDK Build-tools & Android SDK Platform-tools version as shown in the Configure Required SDKs image above.

Note: Local Maven repository for Support Libraries which is listed as the SDK requirement in the official docs of React-native is now named as Android Support Repository in the SDK Manager.