打开本机Docker for Mac时出错

我有Mac 10.10.5，我已经下载Mac版本的Docker。 尽pipe有pipe理员访问我的机器，我不断收到以下错误

Administrator privileges are required. You need administrator privileges on this computer to install Docker. Please log in as an administrator to install the app, then you can use Docker with standard user accounts. 

我曾经有Docker Native Beta，几周前我尝试升级它，从那以后我开始有这个问题。 任何想法为什么发生这种情况？