invalid PID number "" in "/usr/local/var/run/nginx/nginx.pid"

  在Mac上用brew安裝Nginx，而後修改Nginx配置文件，再重啓時報出以下錯誤：nginx nginx: [error] invalid PID number "" in "/usr/local/var/run/nginx/nginx.pid"spa 解決辦法：blog $ sudo nginx -c /usr/local/etc/nginx/nginx.conf $ sudo ngin

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