android-studio-3.1 - 如何修复“找不到任何与 com.android.support:appcompat-v7:29.+ 匹配的版本

Question

怎么修

"Unable to resolve dependency for ':app@releaseUnitTest/compileClasspath': Could not find any version that matches com.android.support:appcompat-v7:29.+. <a href="openFile:C:/Users/hhira/AndroidStudioProjects/MyApp/app/build.gradle">Open File</a><br><a href="Unable to resolve dependency for &#39;:app@releaseUnitTest/compileClasspath&#39;: Could not find any version that matches com.android.support:appcompat-v7:29.+.">Show Details</a> "

标签： android-studio-3.1