No compile error help

[maevllc]

I try to used the plugin with flutter 1.22 and show me the following error after try compile the apps

Note: /home/cesar/Descargas/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_freshchat-1.4.0/android/src/main/java/com/freshchat/flutter_freshchat/FlutterFreshchatPlugin.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.

If I continue with the message the app all time crashed never open.

any have solution to this problem? thanks for you help