无法下载依赖

[censujiang]

Execution failed for task ':app:checkReleaseAarMetadata'.
> Could not resolve all files for configuration ':app:releaseRuntimeClasspath'.
   > Could not find com.github.Z-P-J:ZDownloader:2.0.0.
     Searched in the following locations:
       - https://dl.google.com/dl/android/maven2/com/github/Z-P-J/ZDownloader/2.0.0/ZDownloader-2.0.0.pom
       - https://repo.maven.apache.org/maven2/com/github/Z-P-J/ZDownloader/2.0.0/ZDownloader-2.0.0.pom

我又去maven仓库搜了一下，com.github.Z-P-J:ZDownloader这个包确实不存在，请问一下是下架了还是怎么了