启动Juggernaut时出错

1 Apr 20:21:01 - socket.io ready - accepting connections
node_redis: no callback to send error: ERR unknown command 'subscribe'

node.js:134
        throw e; // process.nextTick error, or 'error' event on first tick
        ^
Error: ERR unknown command 'subscribe'
    at RedisReplyParser.<anonymous> (/usr/local/lib/node/.npm/redis/0.5.9/packag
e/index.js:84:27)
    at RedisReplyParser.emit (events.js:64:17)
    at RedisReplyParser.send_error (/usr/local/lib/node/.npm/redis/0.5.9/package
/lib/parser/javascript.js:251:14)
    at RedisReplyParser.execute (/usr/local/lib/node/.npm/redis/0.5.9/package/li
b/parser/javascript.js:110:22)
    at RedisClient.on_data (/usr/local/lib/node/.npm/redis/0.5.9/package/index.j
s:328:27)
    at Socket.<anonymous> (/usr/local/lib/node/.npm/redis/0.5.9/package/index.js
:99:14)
    at Socket.emit (events.js:64:17)
    at Socket._onReadable (net.js:672:14)
    at IOWatcher.onReadable [as callback] (net.js:177:10)