Manifest merger failed : uses-sdk:minSdkVersion 15 cannot be smaller than version 19 declared in library [:CordovaLib]
c:\xxxxxxxxxx\platforms\android\CordovaLib\build\intermediates\library_manifest\debug\AndroidManifest.xml as the library might be using APIs not available in 15
Suggestion: use a compatible library with a minSdk of at most 15,
or increase this project’s minSdk version to at least 19,
or use tools:overrideLibrary=”org.apache.cordova” to force usage (may lead to runtime failures)
config.xml に以下のような行を追加
<preference name="android-minSdkVersion" value="19" />
<preference name="android-targetSdkVersion" value="27"/>