【Flutter】ビルドエラー「Could not download bundletool-0.14.0.jar 」

Flutterのビルドエラー「Could not download bundletool-0.14.0.jar 」について紹介します。

【1】ビルドエラー「Could not download bundletool-0.14.0.jar 」

* What went wrong:
A problem occurred configuring root project 'android'.
> Could not resolve all artifacts for configuration ':classpath'.
   > Could not download bundletool-0.14.0.jar (com.android.tools.build:bundletool:0.14.0)
      > Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/bundletool/0.14.0/bundletool-0.14.0.jar'.
         > Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/bundletool/0.14.0/bundletool-0.14.0.jar'.
            > dl.google.com

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 1m 18s
Running Gradle task 'bundleRelease'...
Running Gradle task 'bundleRelease'... Done                        80.3s
Gradle task bundleRelease failed with exit code 1