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flutter开发的一个小小小问题，内网依赖下不来

news 2025/7/6 14:42:42

问题

由于众所周知的原因，flutter编译时，经常出现Could not get resource 'https://storage.googleapis.com/download.flutter.io…'的问题，如下：

* What went wrong:
Could not determine the dependencies of task ':app:lintVitalRelease'.
> Could not resolve all artifacts for configuration ':app:debugCompileClasspath'.
   > Could not download armeabi_v7a_debug-1.0.0-cdbeda788a293fa29665dc3fa3d6e63bd221cb0d.jar (io.flutter:armeabi_v7a_debug:1.0.0-cdbeda788a293fa29665dc3fa3d6e63bd221cb0d)
      > Could not get resource 'https://storage.googleapis.com/download.flutter.io/io/flutter/armeabi_v7a_debug/1.0.0-cdbeda788a293fa29665dc3fa3d6e63bd221cb0d/armeabi_v7a_debug-1.0.0-cdbeda788a293fa2966
5dc3fa3d6e63bd221cb0d.jar'.
         > Could not GET 'https://storage.googleapis.com/download.flutter.io/io/flutter/armeabi_v7a_debug/1.0.0-cdbeda788a293fa29665dc3fa3d6e63bd221cb0d/armeabi_v7a_debug-1.0.0-cdbeda788a293fa29665dc3fa
3d6e63bd221cb0d.jar'.
            > Connection reset

* 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 5s
Running Gradle task 'assembleRelease'...                            6.4s
[!] Gradle threw an error while downloading artifacts from the network.
Retrying Gradle Build: #12, wait time: 204800ms

解决

修改flutter中gradle的仓库配置，目录为：D:\google\flutter\packages\flutter_tools\gradle
在这里插入图片描述
打开flutter.gradle，然后修改仓库信息为：http://mirror.nju.edu.cn/flutter，如下：

    // private static final String DEFAULT_MAVEN_HOST = "https://storage.googleapis.com";
    private static final String DEFAULT_MAVEN_HOST = "http://mirror.nju.edu.cn/flutter";

分析

然后，我又看了下flutter.gradle里面的代码，给大家看看：

        // Configure the Maven repository.
        String hostedRepository = System.env.FLUTTER_STORAGE_BASE_URL ?: DEFAULT_MAVEN_HOST
        String repository = useLocalEngine()
            ? project.property('local-engine-repo')
            : "$hostedRepository/download.flutter.io"
        rootProject.allprojects {
            repositories {
                maven {
                    url repository
                }
            }
        }