appium 运行报错：...... Attempt to re-install io.appium.settings without first uninstalling解决方案

报错形式：

　　Failed to install D:\AutoTest\appium\Appium\node_modules\appium\build\settings_apk\settings_apk-debug.apk: Failure [INSTALL_FAILED_ALREADY_EXISTS: Attempt to re-install io.appium.settings without first uninstalling.]

解决方案：

　　手动卸载手机上已经安装的appium setting和unlock。再次重新运行即可。