crypto:3638
  return new Hash(hash);
         ^
TypeError: undefined is not a function
    at CALL_NON_FUNCTION_AS_CONSTRUCTOR (native)
    at Object.createHash (crypto:3638:10)
    at [object Object]._proveReception (/home3/jyoung4/Desktop/Vega/test_transfer/lib/lib/socket.io/transports/websocket.js:100:22)
    at [object Object]._onConnect (/home3/jyoung4/Desktop/Vega/test_transfer/lib/lib/socket.io/transports/websocket.js:68:12)
    at [object Object].<anonymous> (/home3/jyoung4/Desktop/Vega/test_transfer/lib/lib/socket.io/client.js:22:8)
    at new <anonymous> (/home3/jyoung4/Desktop/Vega/test_transfer/lib/lib/socket.io/transports/websocket.js:7:10)
    at [object Object]._onConnection (/home3/jyoung4/Desktop/Vega/test_transfer/lib/lib/socket.io/listener.js:165:74)
    at [object Object].check (/home3/jyoung4/Desktop/Vega/test_transfer/lib/lib/socket.io/listener.js:84:12)
    at Server.<anonymous> (/home3/jyoung4/Desktop/Vega/test_transfer/lib/lib/socket.io/listener.js:44:15)
    at Server.emit (events:41:20)