title: how to solve this error when I was configure /etc/shadowsocks.conf
body: <p><a href="https://i.stack.imgur.com/bw01b.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/bw01b.png" alt="when i try to configure the shadowsocks on my server,i encountered an error below.can anyone help me out ? thx" /></a>
  i have read the tutorial below ,but still can not solve this problem.
  <a href="https://github.com/shadowsocks/shadowsocks/wiki/Configuration-via-Config-File" rel="nofollow noreferrer">https://github.com/shadowsocks/shadowsocks/wiki/Configuration-via-Config-File</a></p>