Could not resolve all files for configuration ':_internal_aapt2_binary'.

* What went wrong:
Could not resolve all files for configuration ':_internal_aapt2_binary'.
> Could not find com.android.tools.build:aapt2:3.2.1-4818971.
Searched in the following locations:
- file:/Users/lio/Library/Android/sdk/extras/m2repository/com/android/tools/build/aapt2/3.2.1-4818971/aapt2-3.2.1-4818971.pom
- file:/Users/lio/Library/Android/sdk/extras/m2repository/com/android/tools/build/aapt2/3.2.1-4818971/aapt2-3.2.1-4818971-osx.jar
- file:/Users/lio/Library/Android/sdk/extras/google/m2repository/com/android/tools/build/aapt2/3.2.1-4818971/aapt2-3.2.1-4818971.pom
- file:/Users/lio/Library/Android/sdk/extras/google/m2repository/com/android/tools/build/aapt2/3.2.1-4818971/aapt2-3.2.1-4818971-osx.jar
- file:/Users/lio/Library/Android/sdk/extras/android/m2repository/com/android/tools/build/aapt2/3.2.1-4818971/aapt2-3.2.1-4818971.pom
- file:/Users/lio/Library/Android/sdk/extras/android/m2repository/com/android/tools/build/aapt2/3.2.1-4818971/aapt2-3.2.1-4818971-osx.jar
- https://jcenter.bintray.com/com/android/tools/build/aapt2/3.2.1-4818971/aapt2-3.2.1-4818971.pom
- https://jcenter.bintray.com/com/android/tools/build/aapt2/3.2.1-4818971/aapt2-3.2.1-4818971-osx.jar
- http://download.flutter.io/com/android/tools/build/aapt2/3.2.1-4818971/aapt2-3.2.1-4818971.pom
- http://download.flutter.io/com/android/tools/build/aapt2/3.2.1-4818971/aapt2-3.2.1-4818971-osx.jar
Required by:
project :

* Try:
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BUILD FAILED in 8s

The plugin flutter_webview_plugin could not be built due to the issue above.

Start by reproducing the plugin build and inspect the Android SDK repositories and dependency resolution for com.android.tools.build:aapt2:3.2.1-4818971, which the error lists as missing. The work is done when the flutter_webview_plugin project builds without the unresolved _internal_aapt2_binary dependency.

Written by the indexing model from the issue text.