What went wrong:
Execution failed for task ':heasy_react-native-sunmi-printer:processDebugAndroidTestManifest'.
Manifest merger failed : uses-sdk:minSdkVersion 19 cannot be smaller than version 21 declared in library [com.facebook.react:react-android:0.71.7] /Users/amadujalloh/.gradle/caches/transforms-3/d0a554d5576a2a9304bc326d8c9b4820/transformed/jetified-react-android-0.71.7-debug/AndroidManifest.xml as the library might be using APIs not available in 19
Suggestion: use a compatible library with a minSdk of at most 19,
or increase this project's minSdk version to at least 21,
or use tools:overrideLibrary="com.facebook.react" to force usage (may lead to runtime failures)