flutter sdk及android studio插件的安装都是参照flutter环境搭建来进行的，flutter doctor一切正常。但新建flutter project后，运行就卡住了。
Running Gradle task 'assembleDebug'...
This is taking an unexpectedly long time.
运行时会卡在Running Gradle task 'assembleDebug'..., 因为Gradle的Maven仓库在国外, 可以使用阿里云的镜像地址。
(1). 修改项目中android/build.gradle文件
buildscript {
repositories {
//修改的地方
//google()
//jcenter()
maven { url 'https://maven.aliyun.com/repository/google' }
maven { url 'https://maven.aliyun.com/repository/jcenter' }
maven { url 'http://maven.aliyun.com/nexus/content/groups/public' }
}
dependencies {
classpath 'com.android.tools.build:gradle:3.2.1'
}
}
allprojects {
repositories {
//修改的地方
//google()
//jcenter()
maven { url 'https://maven.aliyun.com/repository/google' }
maven { url 'https://maven.aliyun.com/repository/jcenter' }
maven { url 'http://maven.aliyun.com/nexus/content/groups/public' }
}
}
rootProject.buildDir = '../build'
subprojects {
project.buildDir = "${rootProject.buildDir}/${project.name}"
}
subprojects {
project.evaluationDependsOn(':app')
}
task clean(type: Delete) {
delete rootProject.buildDir
}
(2). 修改Flutter的配置文件, 该文件在Flutter安装目录/packages/flutter_tools/gradle/flutter.gradle
buildscript {
repositories {
//修改的地方
//google()
//jcenter()
maven { url 'https://maven.aliyun.com/repository/google' }
maven { url 'https://maven.aliyun.com/repository/jcenter' }
maven { url 'http://maven.aliyun.com/nexus/content/groups/public' }
}
dependencies {
classpath 'com.android.tools.build:gradle:3.2.1'
}
}
重新开始
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-fd60ddf7517ce2bfd6577636bda2065c0e492664.
Required by:
project :app
> Could not resolve io.flutter:flutter_embedding_debug:1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.
> Could not get resource 'https://storage.googleapis.com/download.flutter.io/io/flutter/flutter_embedding_debug/1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664/flutter_embedding_debug-1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.pom'.
> Could not HEAD 'https://storage.googleapis.com/download.flutter.io/io/flutter/flutter_embedding_debug/1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664/flutter_embedding_debug-1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.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-fd60ddf7517ce2bfd6577636bda2065c0e492664.
> Could not get resource 'https://storage.googleapis.com/download.flutter.io/io/flutter/flutter_embedding_debug/1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664/flutter_embedding_debug-1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.pom'.
> Could not HEAD 'https://storage.googleapis.com/download.flutter.io/io/flutter/flutter_embedding_debug/1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664/flutter_embedding_debug-1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.pom'.
> Connect to storage.googleapis.com:443 [storage.googleapis.com/34.64.4.80] failed: Read timed out
> Could not resolve io.flutter:arm64_v8a_debug:1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.
Required by:
project :app
> Could not resolve io.flutter:arm64_v8a_debug:1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.
> Could not get resource 'https://storage.googleapis.com/download.flutter.io/io/flutter/arm64_v8a_debug/1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664/arm64_v8a_debug-1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.pom'.
> Could not HEAD 'https://storage.googleapis.com/download.flutter.io/io/flutter/arm64_v8a_debug/1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664/arm64_v8a_debug-1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.pom'.
> Connect to storage.googleapis.com:443 [storage.googleapis.com/34.64.4.80] failed: Connection timed out: connect
> Could not resolve io.flutter:arm64_v8a_debug:1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.
> Could not get resource 'https://storage.googleapis.com/download.flutter.io/io/flutter/arm64_v8a_debug/1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664/arm64_v8a_debug-1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.pom'.
> Could not HEAD 'https://storage.googleapis.com/download.flutter.io/io/flutter/arm64_v8a_debug/1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664/arm64_v8a_debug-1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.pom'.
> Connect to storage.googleapis.com:443 [storage.googleapis.com/34.64.4.80] failed: Read timed out
> Could not resolve io.flutter:x86_debug:1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.
Required by:
project :app
> Could not resolve io.flutter:x86_debug:1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.
> Could not get resource 'https://storage.googleapis.com/download.flutter.io/io/flutter/x86_debug/1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664/x86_debug-1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.pom'.
> Could not HEAD 'https://storage.googleapis.com/download.flutter.io/io/flutter/x86_debug/1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664/x86_debug-1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.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-fd60ddf7517ce2bfd6577636bda2065c0e492664.
> Could not get resource 'https://storage.googleapis.com/download.flutter.io/io/flutter/x86_debug/1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664/x86_debug-1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.pom'.
> Could not HEAD 'https://storage.googleapis.com/download.flutter.io/io/flutter/x86_debug/1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664/x86_debug-1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.pom'.
> Connect to storage.googleapis.com:443 [storage.googleapis.com/34.64.4.80] failed: Read timed out
> Could not resolve io.flutter:x86_64_debug:1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.
Required by:
project :app
> Could not resolve io.flutter:x86_64_debug:1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.
> Could not get resource 'https://storage.googleapis.com/download.flutter.io/io/flutter/x86_64_debug/1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664/x86_64_debug-1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.pom'.
> Could not HEAD 'https://storage.googleapis.com/download.flutter.io/io/flutter/x86_64_debug/1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664/x86_64_debug-1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.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_64_debug:1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.
> Could not get resource 'https://storage.googleapis.com/download.flutter.io/io/flutter/x86_64_debug/1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664/x86_64_debug-1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.pom'.
> Could not HEAD 'https://storage.googleapis.com/download.flutter.io/io/flutter/x86_64_debug/1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664/x86_64_debug-1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.pom'.
> Connect to storage.googleapis.com:443 [storage.googleapis.com/34.64.4.80] failed: Read timed out
于是，我把/packages/flutter_tools/gradle/flutter.gradle中的
private static final String MAVEN_REPO = "https://storage.googleapis.com/download.flutter.io";改为private static final String MAVEN_REPO = "https://storage.flutter-io.cn/download.flutter.io";
于是提示变成了
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 find io.flutter:flutter_embedding_debug:1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.
Required by:
project :app
> Could not find io.flutter:arm64_v8a_debug:1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.
Required by:
project :app
> Could not find io.flutter:x86_debug:1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.
Required by:
project :app
> Could not find io.flutter:x86_64_debug:1.0.0-fd60ddf7517ce2bfd6577636bda2065c0e492664.
Required by:
project :app
google后参考这里
加上如下解决
maven {
url 'http://download.flutter.io'
}