[Solved] Execution failed for task ':app:processDevelopmentDebugResources'

While working on react-native app my android build failed on the CI environment and locally. I am getting this error - 

Execution failed for task ':app:processDevelopmentDebugResources'.

> A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade
   > Android resource linking failed
.../app/build/intermediates/incremental/mergeDevelopmentDebugResources/merged.dir/values/values.xml:2682: AAPT: error: resource android:attr/lStar not found.

Also getting this error -

core-1.7.0-alpha02\res\values\values.xml:105:5-114:25: AAPT: error: resource android:attr/lStar not found.

Solution 1:

This happened cause some library got upgraded. After searching I found because of this "@react-native-community/netinfo" package I am facing problem. So you have to update the package using - 

yarn add @react-native-community/netinfo

or

npm update @react-native-community/netinfo

No need to change anything on the android files or gradle.

Solution 2:

If previous solution not work, then you can update the android/build.gradle file -

ext {
    buildToolsVersion = "29.0.2"
    minSdkVersion = 21
    compileSdkVersion = 29
    targetSdkVersion = 29
    googlePlayServicesAuthVersion = "16.0.1"
    androidXCore = "1.6.0"
}

Here androidXCore = "1.6.0" is the main part to solve this problem.

Thanks for reading the post. If you have any problem, you can comment here.