NFC Reader with phonegap-nfc not work

I have problem when i build sample NFC Reader apps from ionic nfc reader by don on github.
This is error screen when i build my apps.

In the first build, the warning message is appear, in the next build its not appear.
The application still can running, but when i try scan my rfid card its not work. :frowning:

After try and error, I think its only warning not an error and its not the cause my apps not running well. Finally my apps running well with some improovement. So, thnks all … :slightly_smiling: