I got this error after installing nginx and trying to run passenger for my ruby apps. I understood that I needed to run nginx as the same user I was using to run my ruby apps. To do this, I had to use the “user” directive in the nginx.conf file to define the startup user to be “presmini” (the same user running my ruby apps). What I screwed up was that the failure（他也遇到了，其实我也遇到了）

[emerg]: getgrnam(“presmini”) failed in /opt/nginx/conf/nginx.conf:1

上面是错误提示的说明。

is that I wasn’t explicity defining a group in the nginx.conf file, and so it was defaulting to something that does exist. Since I’m on a mac, I just changed the “user” directive in the nginx.conf file to:

原因是没有添加组

user presmini staff

修改成类似这样的就可以了