文章目录一、错误记录二、问题分析1、阿里云的镜像不能用2、Flutter 社区源可用但是速度慢 ( 可用 )3、上海交大的源不可用4、清华源不可用三、最终解决方案一、错误记录在 Android Studio 中 编译 Flutter 项目 ,选择 菜单栏 | Builder | Flutter | Build APK 选项 , 编译 APK 文件 ;完整报错信息 :D:\001_Develop\026_Flutter_3.41.7\flutter\bin\flutter.bat--no-color build apk Flutter assets will be downloaded from https://storage.flutter-io.cn.Make sure you trustthissource!Running Gradle taskassembleRelease...FAILURE:Build failed with an exception.*What went wrong:Execution failedfortask:app:mergeReleaseNativeLibs.Could not resolve all filesforconfiguration:app:releaseRuntimeClasspath.Failed to transform flutter_embedding_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.jar(io.flutter:flutter_embedding_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab)to match attributes{artifactTypeandroid-jni,org.gradle.categorylibrary,org.gradle.libraryelementsjar,org.gradle.statusrelease,org.gradle.usagejava-runtime}.Could not download flutter_embedding_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.jar(io.flutter:flutter_embedding_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab)Could not get resourcehttps://storage.flutter-io.cn/download.flutter.io/io/flutter/flutter_embedding_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/flutter_embedding_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.jar.Read timed outFailed to transform armeabi_v7a_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.jar(io.flutter:armeabi_v7a_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab)to match attributes{artifactTypeandroid-jni,org.gradle.categorylibrary,org.gradle.libraryelementsjar,org.gradle.statusrelease,org.gradle.usagejava-runtime}.Could not download armeabi_v7a_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.jar(io.flutter:armeabi_v7a_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab)Could not get resourcehttps://storage.flutter-io.cn/download.flutter.io/io/flutter/armeabi_v7a_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/armeabi_v7a_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.jar.Read timed outFailed to transform arm64_v8a_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.jar(io.flutter:arm64_v8a_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab)to match attributes{artifactTypeandroid-jni,org.gradle.categorylibrary,org.gradle.libraryelementsjar,org.gradle.statusrelease,org.gradle.usagejava-runtime}.Could not download arm64_v8a_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.jar(io.flutter:arm64_v8a_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab)Could not get resourcehttps://storage.flutter-io.cn/download.flutter.io/io/flutter/arm64_v8a_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/arm64_v8a_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.jar.Read timed outFailed to transform x86_64_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.jar(io.flutter:x86_64_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab)to match attributes{artifactTypeandroid-jni,org.gradle.categorylibrary,org.gradle.libraryelementsjar,org.gradle.statusrelease,org.gradle.usagejava-runtime}.Could not download x86_64_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.jar(io.flutter:x86_64_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab)Could not get resourcehttps://storage.flutter-io.cn/download.flutter.io/io/flutter/x86_64_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/x86_64_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.jar.Read timed out*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 FAILEDin2m 54s Running Gradle taskassembleRelease...175.0s Retrying Gradle Build:#1,wait time:100ms[!]Gradle threw an errorwhiledownloading artifacts from the network.FAILURE:Build failed with an exception.*Where:Settings fileD:\002_Project\001_Flutter\client_terminal\android\settings.gradle.ktsline:15*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 FAILEDin1s Running Gradle taskassembleRelease...2,112ms Gradle task assembleRelease failed with exit code1Process finished with exit code1测试了下 https://storage.flutter-io.cn/download.flutter.io/io/flutter/flutter_embedding_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/flutter_embedding_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.jar 文件可以访问 , 但是下载很慢 , 几 kb/s 的 下载速度 ;二、问题分析1、阿里云的镜像不能用尝试配置 阿里云 的镜像repositories{// 清华源maven{urluri(https://mirrors.tuna.tsinghua.edu.cn/flutter)}// 阿里云 Flutter 镜像maven{urluri(https://maven.aliyun.com/repository/flutter)}maven{urluri(https://maven.aliyun.com/repository/google)}maven{urluri(https://maven.aliyun.com/repository/gradle-plugin)}maven{urluri(https://maven.aliyun.com/repository/jcenter)}mavenCentral()google()gradlePluginPortal()}报错 , 这个源需要鉴权 , 不对外开放 ;D:\001_Develop\026_Flutter_3.41.7\flutter\bin\flutter.bat--no-color build apk Flutter assets will be downloaded from https://mirrors.tuna.tsinghua.edu.cn/flutter.Make sure you trustthissource!Running Gradle taskassembleRelease...FAILURE:Build failed with an exception.*What went wrong:Execution failedfortask:app:mergeReleaseNativeLibs.Could not resolve all filesforconfiguration:app:releaseRuntimeClasspath.Could not resolve io.flutter:flutter_embedding_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.Required by:project:appCould not resolve io.flutter:flutter_embedding_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.Could not get resourcehttps://maven.aliyun.com/repository/flutter/io/flutter/flutter_embedding_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/flutter_embedding_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.pom.Could not HEADhttps://maven.aliyun.com/repository/flutter/io/flutter/flutter_embedding_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/flutter_embedding_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.pom.Received status code401from server:UnauthorizedCould not resolve io.flutter:armeabi_v7a_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.Required by:project:appCould not resolve io.flutter:armeabi_v7a_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.Could not get resourcehttps://maven.aliyun.com/repository/flutter/io/flutter/armeabi_v7a_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/armeabi_v7a_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.pom.Could not HEADhttps://maven.aliyun.com/repository/flutter/io/flutter/armeabi_v7a_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/armeabi_v7a_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.pom.Received status code401from server:UnauthorizedCould not resolve io.flutter:arm64_v8a_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.Required by:project:appCould not resolve io.flutter:arm64_v8a_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.Could not get resourcehttps://maven.aliyun.com/repository/flutter/io/flutter/arm64_v8a_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/arm64_v8a_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.pom.Could not HEADhttps://maven.aliyun.com/repository/flutter/io/flutter/arm64_v8a_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/arm64_v8a_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.pom.Received status code401from server:UnauthorizedCould not resolve io.flutter:x86_64_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.Required by:project:appCould not resolve io.flutter:x86_64_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.Could not get resourcehttps://maven.aliyun.com/repository/flutter/io/flutter/x86_64_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/x86_64_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.pom.Could not HEADhttps://maven.aliyun.com/repository/flutter/io/flutter/x86_64_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/x86_64_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.pom.Received status code401from server:Unauthorized*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 FAILEDin25s Running Gradle taskassembleRelease...26.1s Retrying Gradle Build:#1,wait time:100ms[!]Gradle threw an errorwhiledownloading artifacts from the network.Running Gradle taskassembleRelease...FAILURE:Build failed with an exception.*What went wrong:Execution failedfortask:app:mergeReleaseNativeLibs.Could not resolve all filesforconfiguration:app:releaseRuntimeClasspath.Could not resolve io.flutter:flutter_embedding_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.Required by:project:appCould not resolve io.flutter:flutter_embedding_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.Could not get resourcehttps://maven.aliyun.com/repository/flutter/io/flutter/flutter_embedding_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/flutter_embedding_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.pom.Could not HEADhttps://maven.aliyun.com/repository/flutter/io/flutter/flutter_embedding_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/flutter_embedding_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.pom.Received status code401from server:UnauthorizedCould not resolve io.flutter:armeabi_v7a_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.Required by:project:appCould not resolve io.flutter:armeabi_v7a_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.Could not get resourcehttps://maven.aliyun.com/repository/flutter/io/flutter/armeabi_v7a_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/armeabi_v7a_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.pom.Could not HEADhttps://maven.aliyun.com/repository/flutter/io/flutter/armeabi_v7a_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/armeabi_v7a_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.pom.Received status code401from server:UnauthorizedCould not resolve io.flutter:arm64_v8a_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.Required by:project:appCould not resolve io.flutter:arm64_v8a_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.Could not get resourcehttps://maven.aliyun.com/repository/flutter/io/flutter/arm64_v8a_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/arm64_v8a_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.pom.Could not HEADhttps://maven.aliyun.com/repository/flutter/io/flutter/arm64_v8a_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/arm64_v8a_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.pom.Received status code401from server:UnauthorizedCould not resolve io.flutter:x86_64_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.Required by:project:appCould not resolve io.flutter:x86_64_release:1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.Could not get resourcehttps://maven.aliyun.com/repository/flutter/io/flutter/x86_64_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/x86_64_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.pom.Could not HEADhttps://maven.aliyun.com/repository/flutter/io/flutter/x86_64_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/x86_64_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.pom.Received status code401from server:Unauthorized*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 FAILEDin11s Running Gradle taskassembleRelease...12.2s[!]Gradle threw an errorwhiledownloading artifacts from the network.Gradle task assembleRelease failed with exit code1Process finished with exit code12、Flutter 社区源可用但是速度慢 ( 可用 )在 https://docs.flutter.cn/community/china/ 文档中 , 推荐使用的 Flutter 社区 源 , 可以使用 , 但是太慢 , 报超时错误 ;在 macOS、Linux 或 ChromeOS 上export PUB_HOSTED_URLhttps://pub.flutter-io.cn export FLUTTER_STORAGE_BASE_URLhttps://storage.flutter-io.cn在 Windows 上$env:PUB_HOSTED_URLhttps://pub.flutter-io.cn$env:FLUTTER_STORAGE_BASE_URLhttps://storage.flutter-io.cn下面的报错 就是 速度慢 , 下载超时 , 下载速度 2kB/s , 速度太慢 ;Could not get resourcehttps://storage.flutter-io.cn/download.flutter.io/io/flutter/x86_64_release/1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab/x86_64_release-1.0.0-59aa584fdf100e6c78c785d8a5b565d1de4b48ab.jar.Read timed out3、上海交大的源不可用在 https://docs.flutter.cn/community/china/ 文档中 , 提供的上海交大的源不可用 ;export PUB_HOSTED_URLhttps://mirror.sjtu.edu.cn/dart-pub export FLUTTER_STORAGE_BASE_URLhttps://mirror.sjtu.edu.cn4、清华源不可用在 https://docs.flutter.cn/community/china/ 文档中 , 提供的清华源不可用 ;export PUB_HOSTED_URLhttps://mirrors.tuna.tsinghua.edu.cn/dart-pub export FLUTTER_STORAGE_BASE_URLhttps://mirrors.tuna.tsinghua.edu.cn/flutter三、最终解决方案在 环境变量 中 删除了 PUB_HOSTED_URL 和 FLUTTER_STORAGE_BASE_URL 环境变量 , 挂上梯子 , 然后 编译 apk 文件 , 编译成功 ;编译完成 :还有另外一种解决方案 , 换个 网络环境 , 使用手机共享 WIFI 热点 , 或者切换一个其它的 WIFI , 有概率编译通过 , 我第二天早上换了一个另外的 WIFI , 可以编译通过 ;挂上梯子 , 只需要成功下载一次 , 将依赖包下载到 C 盘的 C:\Users\octop.gradle 目录中 , 后面即使网络有问题 , 也能编译成功 ;完整命令行执行过程 :D:\002_Project\001_Flutter\client_terminalflutter doctor Flutter assets will be downloaded from https://storage.flutter-io.cn. Make sure you trust this source!Doctor summary(to see all details, run flutter doctor -v):[√]Flutter(Channel stable,3.41.7, on Microsoft Windows[版本10.0.19045.6466], locale zh-CN)[√]Windows Version(10家庭中文版64位, 22H2,2009)[√]Android toolchain - developforAndroid devices(Android SDK version37.0.0)[√]Chrome - developforthe web[√]Visual Studio - develop Windows apps(Visual Studio Community201916.11.2)[√]Connected device(3available)[☠]Network resources(the doctor check crashed)X Due to an error, the doctor check did not complete. If the error message below is not helpful, pleaseletus know about this issue at https://github.com/flutter/flutter/issues. X Exception: Network resources exceeded maximum allowed duration of0:04:30.000000!Doctor found issuesin1category. D:\002_Project\001_Flutter\client_terminalflutter build apk--releaseFlutter assets will be downloaded from https://storage.flutter-io.cn. Make sure you trust this source!Running Gradle taskassembleRelease...24.8s √ Built build\app\outputs\flutter-apk\app-release.apk(44.4MB)D:\002_Project\001_Flutter\client_terminalflutter build apk--debugFlutter assets will be downloaded from https://storage.flutter-io.cn. Make sure you trust this source!Running Gradle taskassembleDebug...7.4s √ Built build\app\outputs\flutter-apk\app-debug.apk D:\002_Project\001_Flutter\client_terminalflutter devices Flutter assets will be downloaded from https://storage.flutter-io.cn. Make sure you trust this source!Found4connected devices: CTR AL00(mobile)• PXUYD22628020934 • android-arm64 • Android12(API31)Windows(desktop)• windows • windows-x64 • Microsoft Windows[版本10.0.19045.6466]Chrome(web)• chrome • web-javascript • Google Chrome122.0.6261.112 Edge(web)• edge • web-javascript • Microsoft Edge127.0.2651.74 Runflutter emulatorsto list and start any available device emulators.