Conflict with dependency ‘com.android.support:support-annotations’ in project ‘:app’解決辦法（AS）

從svn上checkout下來的文件，編譯的時候遇到了如下問題： Conflict with dependency ‘com.android.support:support-annotations’ in project ‘:app’. Resolved versions for app (27.0.2) and test app (27.1.1) differ. 查了很多資料都沒什麼卵用，最後找

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