I am encountering an error in the dev.flutter.flutter-gradle-plugin, version 1.0.0.

Please never anywhere share screenshots of text if you only want to share the text and not something additional like colors or IDE annotations. Text in images is hard to read, especially on mobile, very hard to copy, and nearly impossible to search for.

Regarding the problem, you should ask in some Flutter community or Flutter documentation. Afair you should include the flutter plugin build from a manually installed Flutter SDK or something like that.