TypeError: Cannot read property 'url' of null

[suresh1271]

Hi @rmcdaniel , I tried your code in Runkit.com and working fine. But when I try to run in my local machine I am facing the below error. Can you please give me suitable solution for this below error.

**D:\app\nodejs\New folder\node-slackbot-master\node_modules\node-slackbot\lib\sla
ckbot.js:93
self.ws = new ws(data.url);
^

TypeError: Cannot read property 'url' of null
at D:\app\nodejs\New folder\node-slackbot-master\node_modules\node-slackbot
lib\slackbot.js:93:28
at ClientRequest. (D:\app\nodejs\New folder\node-slackbot-master
node_modules\node-slackbot\lib\slackbot.js:55:14)
at emitOne (events.js:96:13)
at ClientRequest.emit (events.js:188:7)
at TLSSocket.socketErrorListener (_http_client.js:310:9)
at emitOne (events.js:96:13)
at TLSSocket.emit (events.js:188:7)
at emitErrorNT (net.js:1277:8)
at _combinedTickCallback (internal/process/next_tick.js:80:11)
at process._tickCallback (internal/process/next_tick.js:104:9)**

[ghost]

Yes I got this error too sometime. I think this is because this line was triggered by https://github.com/rmcdaniel/node-slackbot/blob/master/lib/slackbot.js#L44 or https://github.com/rmcdaniel/node-slackbot/blob/master/lib/slackbot.js#L55. And at this line https://github.com/rmcdaniel/node-slackbot/blob/master/lib/slackbot.js#L92 cb is called without data fulfilled then we got error. So before we go into https://github.com/rmcdaniel/node-slackbot/blob/master/lib/slackbot.js#L93 we should check error.