flutter运行app失败 running gradle task assembleDebugjavajiayangSir的博客-

flutter环境搭建完成之后，创建好了项目，在运行项目flutter run，就一直卡在那，就像这样：

运行时会卡在Running Gradle task ‘assembleDebug’…, 之后就会报这样的错

 FAILURE: Build failed with an exception.  * What went wrong: Could not determine the dependencies of task ':app:compileDebugJavaWithJavac'. > Could not resolve all task dependencies for configuration ':app:debugCompileClasspath'.    > Could not resolve io.flutter:flutter_embedding_debug:1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.      Required by:          project :app       > Could not resolve io.flutter:flutter_embedding_debug:1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.          > Could not get resource 'https://storage.googleapis.com/download.flutter.io/io/flutter/flutter_embedding_debug/1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32/flutter_embedding_debug-1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.pom'.               > Could not GET 'https://storage.googleapis.com/download.flutter.io/io/flutter/flutter_embedding_debug/1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32/flutter_embedding_debug-1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.pom'.                        > Connect to storage.googleapis.com:443 [storage.googleapis.com/172.217.27.144] failed: Connection timed out: connect       > Could not resolve io.flutter:flutter_embedding_debug:1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.                 > Could not get resource 'https://storage.googleapis.com/download.flutter.io/io/flutter/flutter_embedding_debug/1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32/flutter_embedding_debug-1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.pom'.               > Could not GET 'https://storage.googleapis.com/download.flutter.io/io/flutter/flutter_embedding_debug/1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32/flutter_embedding_debug-1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.pom'.                        > Connect to storage.googleapis.com:443 [storage.googleapis.com/34.64.4.80] failed: Connection timed out: connect       > Could not resolve io.flutter:flutter_embedding_debug:1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.          > Could not get resource 'https://storage.googleapis.com/download.flutter.io/io/flutter/flutter_embedding_debug/1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32/flutter_embedding_debug-1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.pom'.               > Could not GET 'https://storage.googleapis.com/download.flutter.io/io/flutter/flutter_embedding_debug/1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32/flutter_embedding_debug-1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.pom'.                        > Connect to storage.googleapis.com:443 [storage.googleapis.com/34.64.4.80] failed: Connection timed out: connect    > Could not resolve io.flutter:x86_debug:1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.      Required by:          project :app       > Could not resolve io.flutter:x86_debug:1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.          > Could not get resource 'https://storage.googleapis.com/download.flutter.io/io/flutter/x86_debug/1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32/x86_debug-1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.pom'.             > Could not GET 'https://storage.googleapis.com/download.flutter.io/io/flutter/x86_debug/1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32/x86_debug-1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.pom'.                > Connect to storage.googleapis.com:443 [storage.googleapis.com/172.217.27.144] failed: Connection timed out: connect       > Could not resolve io.flutter:x86_debug:1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.          > Could not get resource 'https://storage.googleapis.com/download.flutter.io/io/flutter/x86_debug/1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32/x86_debug-1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.pom'.             > Could not GET 'https://storage.googleapis.com/download.flutter.io/io/flutter/x86_debug/1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32/x86_debug-1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.pom'.                > Connect to storage.googleapis.com:443 [storage.googleapis.com/34.64.4.80] failed: Connection timed out: connect       > Could not resolve io.flutter:x86_debug:1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.          > Could not get resource 'https://storage.googleapis.com/download.flutter.io/io/flutter/x86_debug/1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32/x86_debug-1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.pom'.             > Could not GET 'https://storage.googleapis.com/download.flutter.io/io/flutter/x86_debug/1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32/x86_debug-1.0.0-6bc433c6b6b5b98dcf4cc11aff31cdee90849f32.pom'.                > Connect to storage.googleapis.com:443 [storage.googleapis.com/34.64.4.80] failed: Connection timed out: connect  * 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 7m 50s Running Gradle task 'assembleDebug'... Running Gradle task 'assembleDebug'... Done                       472.2s (!) Exception: Gradle task assembleDebug failed with exit code 1

这是因为Gradle的Maven仓库在国外, 可以使用阿里云的镜像地址。

解决方法：

1.修改项目中android/build.gradle文件

 buildscript {     ext.kotlin_version = '1.3.50'     repositories {         // 修改         // google()         // jcenter()         maven { url 'https://maven.aliyun.com/repository/google' }         maven { url 'https://maven.aliyun.com/repository/jcenter' }         maven { url 'https://maven.aliyun.com/nexus/content/groups/public' }      }      dependencies {         classpath 'com.android.tools.build:gradle:3.5.0'         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"     } }  allprojects {     repositories {         // 修改         // google()         // jcenter()         maven { url 'https://maven.aliyun.com/repository/google' }         maven { url 'https://maven.aliyun.com/repository/jcenter' }         maven { url 'https://maven.aliyun.com/nexus/content/groups/public' }     } }

2. 修改flutter sdk安装目录下的 packages/flutter_tools/gradle/flutter.gradle

 buildscript {     repositories {         // 修改         // google()         // jcenter()   maven { url 'https://maven.aliyun.com/repository/google' }         maven { url 'https://maven.aliyun.com/repository/jcenter' }         maven { url 'https://maven.aliyun.com/nexus/content/groups/public' }     }     dependencies {         classpath 'com.android.tools.build:gradle:3.5.0'     } }

     // 修改     // private static final String MAVEN_REPO      = "https://storage.googleapis.com/download.flutter.io";     private static final String MAVEN_REPO      = "https://storage.flutter-io.cn/download.flutter.io";

3. 重新运行 flutter run