The old issue but seems doesn't work. [MissingPluginException]

[Mephistol]

(As my disappointed English, hoping you can understand my meanning)
Firts, thanks for your package!
It works well on the pure flutter project, but when I use it in a mixed app (add flutter to an existing Android app), it failed, and the message showing in the Run window when open the page:
"Another exception was thrown: MissingPluginException(No implementation found for method listen on channel github.com/adee42/flutter_keyboard_visibility)"
So, are you have any idea about this issue? or the existing solution is wonderful!
Look forward to your favourable reply.

[craiglabenz]

I generally find that this issue stems from adding a new Flutter plugin that includes native code, but then trying to continue development without a full rebuild.

[abuzarsaddiqui]

Version 0.5.5 is working fine but need Latest version