android app sdk原生gradle集成总是失败

是按照文档集成的步骤来的，原生版的怎么都报错，基础版本没有问题！！！
Error:Failed to resolve: com.android.support:support-annotations:25.4.0
<a href="install.m2.repo">Install Repository and sync project</a><br><a href="openFile:/Users/tmacbo/EyeProjects/ieyeuser/library/build.gradle">Open File</a><br><a href="open.dependency.in.project.structure">Show in Project Structure dialog</a>

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