错误收集：点击UITextField就会出现以下警告System

报错提示

• System group container for systemgroup.com.apple.configurationprofiles path is /Users/Jackson.Chan/Library/Developer/CoreSimulator/Devices/247E1B7E-224A-4C0E-8655-2F420AACA908/data/Containers/Shared/SystemGroup/systemgroup.com.apple.configurationprofiles
• Reading from private effective user settings.

错误原因

解决方法

• 从xcode菜单中：Product > Scheme > Edit Scheme
  Environment Variables 添加一栏name：OS_ACTIVITY_MODE Value:disable