之前一直没问题，今早一直超时，日志显示是无法 reolve 'com.tencent.mm.opensdk:wechat-sdk-android-without-mta:+'，详细日志如下：

> Could not resolve com.tencent.mm.opensdk:wechat-sdk-android-without-mta:+.

     Required by:

         project :app

      > Failed to list versions for com.tencent.mm.opensdk:wechat-sdk-android-without-mta.

         > Unable to load Maven meta-data from https://jcenter.bintray.com/com/tencent/mm/opensdk/wechat-sdk-android-without-mta/maven-metadata.xml.

            > Could not HEAD 'https://jcenter.bintray.com/com/tencent/mm/opensdk/wechat-sdk-android-without-mta/maven-metadata.xml'.

               > Read timed out

请问如何解决？有国内镜像吗？