真机运行脚本第一次顺利通过，但是第二次在运行时报错：

WebDriverException: Message: An unknown server-side error occurred while processing the command. Original error: Error executing adbExec. Original error: Command '/Users/jesonchen/Downloads/android-sdk-macosx/platform-tools/adb -P 5037 -s NHTC220248 install /Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/appium-android-driver/node_modules/appium-android-ime/bin/UnicodeIME-debug.apk' exited with code 1{"stdout":"","stderr":"Failed to install /Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/appium-android-driver/node_modules/appium-android-ime/bin/UnicodeIME-debug.apk: Failure [INSTALL_FAILED_ALREADY_EXISTS: Attempt to re-install io.appium.android.ime without first uninstalling.]\n","code":1}