初学flutter 刚折腾完环境遇上如下问题，* Error running Gradle: 不知道如何下手寻找！

Question

刚建好一个demo 编译运行一个demo 控制台就出现如下情况

Launching lib/main.dart on Android SDK built for x86 in debug mode...
Initializing gradle...
Resolving dependencies...
* Error running Gradle:
ProcessException: Process "/Users/rabbit/develop/android/flutter_app/android/gradlew" exited abnormally:
Project evaluation failed including an error in afterEvaluate {}. Run with --stacktrace for details of the afterEvaluate {} error.

FAILURE: Build failed with an exception.

* Where:
Build file '/Users/rabbit/develop/android/flutter_app/android/app/build.gradle' line: 25

* What went wrong:
A problem occurred evaluating project ':app'.
> Could not resolve all files for configuration 'classpath'.
   > Could not find lint-gradle-api.jar (com.android.tools.lint:lint-gradle-api:26.1.2).
     Searched in the following locations:
         https://jcenter.bintray.com/com/android/tools/lint/lint-gradle-api/26.1.2/lint-gradle-api-26.1.2.jar

* 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 0s
  Command: /Users/rabbit/develop/android/flutter_app/android/gradlew app:properties

Finished with error: Please review your Gradle project setup in the android/ folder.

网上找了也没有遇上合适的答案来解决它，我看到提示未找到 com.android.tools.lint:lint-gradle-api:26.1.2 但根据提示地址打开无法下载，如果能下载下来应该放在什么位置呢！

已解决：

解决方法1：修改build.gradle,注释掉jcenter()，google()。使用阿里的镜像。原因是jcenter google库无法访问到导致的问题。虽然我有万能的爬墙工具，开启全局代理依然被我们伟大的发改委墙掉了！

buildscript {
    repositories {
        //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:3.1.2'
    }
}

allprojects {
    repositories {
        //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' }
    }
}


第二步：找到fluttersdk目录 进入如下目录

Macintosh HD⁩ ▸ ⁨用户⁩ ▸ ⁨rabbit⁩ ▸ ⁨资源库⁩ ▸ ⁨Flutter⁩ ▸ ⁨packages⁩ ▸ ⁨flutter_tools⁩ ▸ ⁨gradle⁩
找到下 flutter.gradle文件 找如如下内容替换成和我一样的 把jcenter注释掉。

​buildscript {
    repositories {
        //jcenter()
        //maven {
        //    url 'https://dl.google.com/dl/android/maven2'
        //}
        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:3.1.2'
    }
}
至此从新运行，解决掉问题。

Answer 1

解决方法1：修改build.gradle,注释掉jcenter()，google()。使用阿里的镜像。原因是jcenter google库无法访问到导致的问题。虽然我有万能的爬墙工具，开启全局代理依然被我们伟大的发改委墙掉了！

buildscript {

repositories {
    //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:3.1.2'
}

}

allprojects {

repositories {
    //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' }
}

}

第二步：找到fluttersdk目录 进入如下目录

Macintosh HD⁩ ▸ ⁨用户⁩ ▸ ⁨rabbit⁩ ▸ ⁨资源库⁩ ▸ ⁨Flutter⁩ ▸ ⁨packages⁩ ▸ ⁨flutter_tools⁩ ▸ ⁨gradle⁩
找到下 flutter.gradle文件 找如如下内容替换成和我一样的 把jcenter注释掉。

​buildscript {

repositories {
    //jcenter()
    //maven {
    //    url 'https://dl.google.com/dl/android/maven2'
    //}
    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:3.1.2'
}

}
至此从新运行，解决掉问题。

Answer 2

楼上遗漏了一条，flutter.gradle还需要加上这段代码：

maven{
    url 'https://maven.aliyun.com/repository/google'
}

Answer 3

尝试在每个project的build.gradle文件下引入google()

allprojects {
    repositories {
        // google() 要放在第一个加载
        google()
        jcenter()
    }
}

Answer 4

请问楼主解决了么？？我也遇到此问题，而且未找到解决方案，估计是android studio 版本与gradle版本的问题

Answer 5

我已经改了build.gradle和flutter.gradle文件，点运行还是一直
Initializing gradle...
timeout waiting for the application to start
怎么办。。

Answer 6

翻墙，解决一切痛点

Answer 7

之前我在pc端又是翻墙，又是各种配置，然而还是不行，后来我用pc连接手机热点，在pc上翻墙居然可以了，我感觉还是网络得问题，pc端网络和移动端网络不一样，移动端就ok，大家可以试试

Answer 8

改了之后还是报错

    Where:
    Build file    
    'C:\Users\Administrator\Desktop\SaltedFishApp\salted_fish\android\app\build.gradle' line: 25
    What went wrong:
    A problem occurred evaluating project ':app'.
    Could not resolve all artifacts for configuration 'classpath'.
    Could not find com.android.tools.build:gradle:3.2.1.
    Searched in the following locations:
   - https://maven.aliyun.com/repository/jcenter/com/android/tools/build/gradle/3.2.1/gradle-3.2.1.pom
   - https://maven.aliyun.com/repository/jcenter/com/android/tools/build/gradle/3.2.1/gradle-3.2.1.jar
   - http://maven.aliyun.com/nexus/content/groups/public/com/android/tools/build/gradle/3.2.1/gradle-3.2.1.pom
   - http://maven.aliyun.com/nexus/content/groups/public/com/android/tools/build/gradle/3.2.1/gradle-3.2.1.jar
 Required by:
 unspecified:unspecified:unspecified

这咋整啊