配置反向代理nginx代理

(Nginx)3.點(diǎn)擊左側(cè)網(wǎng)站目錄，點(diǎn)擊域名進(jìn)入站點(diǎn)配置，修改配置文件，在最后一個(gè)大括號(hào)上面增加以下代碼，如果修改了端口，請對(duì)應(yīng)修改代碼，添加完成后保存

location /notice {
    proxy_pass http://127.0.0.1:50001/;  
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
    proxy_set_header X-real-ip $remote_addr;
    proxy_set_header X-Forwarded-For $remote_addr;
}
location /msg {
    proxy_pass http://127.0.0.1:50002/;  
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
    proxy_set_header X-real-ip $remote_addr;
    proxy_set_header X-Forwarded-For $remote_addr;
}

按上面教程配置，出現(xiàn)下圖報(bào)錯(cuò)，

這個(gè)怎么弄？