[BUG] bufferUtil error when accessing admin console.

[darcien]

OS: Arch Linux Branch: master and development node version: 6.2.2, 6.9.5, 7.5.0 socket.io version: 1.4.8, 1.7.2

Bot runs normally until I tried to change any options like command options from the admin console. The same error instantly happened without opening or refreshing the admin console page when restarting the bot.

/home/lealith/GAwesomeBot/node_modules/engine.io/node_modules/ws/lib/Receiver.js:306
  if (mask != null && buf != null) bufferUtil.unmask(buf, mask);
                                             ^

TypeError: Cannot read property 'unmask' of undefined
    at Receiver.unmask (/home/lealith/GAwesomeBot/node_modules/engine.io/node_modules/ws/lib/Receiver.js:306:46)
    at Receiver.finish (/home/lealith/GAwesomeBot/node_modules/engine.io/node_modules/ws/lib/Receiver.js:505:25)
    at Receiver.expectHandler (/home/lealith/GAwesomeBot/node_modules/engine.io/node_modules/ws/lib/Receiver.js:493:33)
    at Receiver.add (/home/lealith/GAwesomeBot/node_modules/engine.io/node_modules/ws/lib/Receiver.js:103:24)
    at Socket.realHandler (/home/lealith/GAwesomeBot/node_modules/engine.io/node_modules/ws/lib/WebSocket.js:825:20)
    at emitOne (events.js:96:13)
    at Socket.emit (events.js:188:7)
    at readableAddChunk (_stream_readable.js:176:18)
    at Socket.Readable.push (_stream_readable.js:134:10)
    at TCP.onread (net.js:548:20)

[vladfrangu]

From what I've heard, you're using the master branch. Can you try switching to the development branch and try again? (Which also means you'll have to re-build your DB and config.json)

[medmedmeddia]

I'm experiencing this as well. I tried switching to the development branch but I the same thing happened :/

OS: Debian 8 Node Version: 7.5.0 Socket.io Version: 1.7.2

[darcien]

Just now I tried using the latest development branch, still having issue.

[vladfrangu]

Right, from what it seems, it might be a OS-based issue. I'll test the systems locally and see if thats the case and let you know, ok?

[vladfrangu]

Right, this might sound dumb, but:

Can you go to node_modules/engine.io/node_modules/ws and run npm install

[Gilbert142]

That does sound a little dumb... When running npm install npm checks all your dependencies (here engine.io) and installs THEIR dependencies aswell.

So really, when you run npm install while being in GAB's root folder npm already automaticly runs npm install in all the node_modules' folders (in a way, not exactly, but just to give you the idea)

[vladfrangu]

Except that, it didn't apply on my local debian 8 VM. I don't know if node knows how to handle modules outside of the folder. Aka, if the requirement for engine.io is bufferUtils, it won't find outside the folder. So, each module needs its own node_modules.

Yes, it sounds dumb, but what if it works? We gonna test it before, right?

[darcien]

Actually it's working, I tried it and the bot no longer crashed when accessing the admin console. I searched similar issues like this and seems like there's a bug where npm doesn't install all of it's modules dependencies.

[Gilbert142]

Hm-hm, npm is not behaving as expected in that case. A third-party issue, then.