没有design库

添加后提示

Error:(24, 13) Failed to resolve: com.android.support:design:23.0.1

<a href="install.m2.repo">Install Repository and sync project</a><br><a href="openFile">Show in File</a><br><a href="open.dependency.in.project.structure">Show in Project Structure dialog</a>

老师，怎么解决呢？