gradle - 无法解析配置 ':url_launcher:lintClassPath'的所有文件

Question

我有flutter 1.0.0
在我的pubspec.yaml中，我添加了url_launcher: ^4.0.2
没有导入url_launcher，我得到了这些错误:

Launching lib\main.dart on BBD100 2 in debug mode...

FAILURE: Build failed with an exception.

• What went wrong: Could not resolve all files for configuration ':url_launcher:lintClassPath'.

  Could not resolve com.android.tools.lint:lint-gradle:26.2.1. Required by: project :url_launcher Could not resolve com.android.tools.lint:lint-gradle:26.2.1. Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/lint/lint-gradle/26.2.1/lint-gradle-26.2.1.pom'. Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/lint/lint-gradle/26.2.1/lint-gradle-26.2.1.pom'. Connect to 10.10.208.70:8080 [/10.10.208.70] failed: Connection timed out: connect Could not resolve com.android.tools.lint:lint-gradle:26.2.1. Could not get resource 'https://jcenter.bintray.com/com/android/tools/lint/lint-gradle/26.2.1/lint-gradle-26.2.1.pom'. Could not GET 'https://jcenter.bintray.com/com/android/tools/lint/lint-gradle/26.2.1/lint-gradle-26.2.1.pom'. Connect to 10.10.208.70:8080 [/10.10.208.70] failed: Connection timed out: connect Could not resolve com.android.tools.lint:lint-gradle:26.2.1. Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/lint/lint-gradle/26.2.1/lint-gradle-26.2.1.pom'. Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/lint/lint-gradle/26.2.1/lint-gradle-26.2.1.pom'. Connect to 10.10.208.70:8080 [/10.10.208.70] failed: Connection timed out: connect Could not resolve com.android.tools.lint:lint-gradle:26.2.1. Could not get resource 'https://jcenter.bintray.com/com/android/tools/lint/lint-gradle/26.2.1/lint-gradle-26.2.1.pom'. Could not GET 'https://jcenter.bintray.com/com/android/tools/lint/lint-gradle/26.2.1/lint-gradle-26.2.1.pom'. Connect to 10.10.208.70:8080 [/10.10.208.70] failed: Connection timed out: connect

• 尝试:使用--stacktrace选项运行以获取堆栈跟踪。使用--info或--debug选项运行，以获取更多日志输出。与--scan一起运行以获取完整的见解。
• 在https://help.gradle.org上获得更多帮助


1m 33s Gradle任务组装失败，调试失败，退出代码
1退出(sigterm)

有人可以帮助我调试该问题吗？

我尝试重新安装Flutter，但未成功。

Flutter医生没有发现任何错误。

提前致谢!

***如何使用--stacktrace，-info或--debug选项？

Answer 1

您可以尝试将maven_url / google()移动到内部的jcenter()顶部

C:\flutter\packages\flutter_tools\gradle\flutter.gradle.