今天在Android studio运行项目的时候报了如下错误，项目都编译不过了，顿时慌。。。

这里附上gradle额下载地址(gradle)

Error:Could not resolve all files for configuration ':app:debugCompileClasspath'.
> Could not resolve com.tencent.bugly:nativecrashreport:latest.release.
  Required by:
      project :app
   > Could not resolve com.tencent.bugly:nativecrashreport:latest.release.
      > Failed to list versions for com.tencent.bugly:nativecrashreport.
         > Unable to load Maven meta-data from https://jcenter.bintray.com/com/tencent/bugly/nativecrashreport/maven-metadata.xml.
            > Could not HEAD 'https://jcenter.bintray.com/com/tencent/bugly/nativecrashreport/maven-metadata.xml'. Received status code 502 from server: Bad Gateway
   > Could not resolve com.tencent.bugly:nativecrashreport:latest.release.
      > Failed to list versions for com.tencent.bugly:nativecrashreport.
         > Unable to load Maven meta-data from https://dl.bintray.com/jetbrains/anko/com/tencent/bugly/nativecrashreport/maven-metadata.xml.
            > Could not get resource 'https://dl.bintray.com/jetbrains/anko/com/tencent/bugly/nativecrashreport/maven-metadata.xml'.
               > Could not GET 'https://dl.bintray.com/jetbrains/anko/com/tencent/bugly/nativecrashreport/maven-metadata.xml'. Received status code 502 from server: Bad Gateway

直接访问错误信息中的地址，

 直接访问错误信息中的地址，502错误，如下

咨询了一下万能的群友（好多群都有这个问题），得到如下解决方案，照做之后就ok：

 注释掉jcenter,替换成maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }

allprojects {
    repositories {
        google()
//        jcenter()
//        maven {url 'https://dl.bintray.com/jetbrains/anko'} 
        maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }//解决以下下问题（jcenter bad gateway 502）

//        Error:Could not resolve all files for configuration ':app:debugCompileClasspath'.
//                > Could not resolve com.tencent.bugly:nativecrashreport:latest.release.
//                Required by:
//                project :app
//        > Could not resolve com.tencent.bugly:nativecrashreport:latest.release.
//                > Failed to list versions for com.tencent.bugly:nativecrashreport.
//                > Unable to load Maven meta-data from https://jcenter.bintray.com/com/tencent/bugly/nativecrashreport/maven-metadata.xml.
//        > Could not HEAD 'https://jcenter.bintray.com/com/tencent/bugly/nativecrashreport/maven-metadata.xml'. Received status code 502 from server: Bad Gateway
//        > Could not resolve com.tencent.bugly:nativecrashreport:latest.release.
//                > Failed to list versions for com.tencent.bugly:nativecrashreport.
//                > Unable to load Maven meta-data from https://dl.bintray.com/jetbrains/anko/com/tencent/bugly/nativecrashreport/maven-metadata.xml.
//        > Could not get resource 'https://dl.bintray.com/jetbrains/anko/com/tencent/bugly/nativecrashreport/maven-metadata.xml'.
//        > Could not GET 'https://dl.bintray.com/jetbrains/anko/com/tencent/bugly/nativecrashreport/maven-metadata.xml'. Received status code 502 from server: Bad Gateway
    }

感谢万能的群友！希望你遇到这种情况的时候能快速找到解决方案！