Error android 9

[JonnyBorges]

The project do not compile with the plugin on pubspec.
I have the error:

/opt/flutter/.pub-cache/hosted/pub.dartlang.org/screenshot_callback-1.0.1/android/src/main/java/com/flutter/moum/screenshot_callback/ScreenshotCallbackPlugin.java:45: error: incompatible types: ArrayList cannot be converted to String
fileObserver = new FileObserver(files, FileObserver.CREATE) {
^
/opt/flutter/.pub-cache/hosted/pub.dartlang.org/screenshot_callback-1.0.1/android/src/main/java/com/flutter/moum/screenshot_callback/ScreenshotCallbackPlugin.java:45: error: cannot find symbol
fileObserver = new FileObserver(files, FileObserver.CREATE) {
^
symbol: constructor (ArrayList,int)

[anysunflower]

meet the problem too, any work around?