当我尝试运行仪器测试时，我遇到了错误。
还可以从Android Studio获得对话框，
Error retrieving android device catalog
Testing started at 11:49 ... 06/18 11:49:34: Launching addition_isCorrect() $ adb push /Users/----/app/build/outputs/apk/debug/app-debug.apk /data/local/tmp/com.---- $ adb shell pm install --full -t -r "/data/local/tmp/com.----" Success APK installed in 1 s 898 ms No apk changes detected since last installation, skipping installation of /Users/---/app/build/outputs/apk/androidTest/debug/app-debug-androidTest.apk Running tests $ adb shell am instrument -w -r -e debug false -e class 'com.---.DatabaseTest#addition_isCorrect' com.---.test/android.support.test.runner.AndroidJUnitRunner Client not ready yet. Started running tests Tests ran to completion.
如何摆脱这个错误？