Original post from user "gramholo":

Hello,

I am trying to run PHP chat example from github.
I followed all steps and when I try to connect to server with client I get this error in server console

Code:
03.Jul.18 15:03:57,045 < INFO> Server "Lightstreamer HTTP Server" listening to *:8282 ...
03.Jul.18 15:05:03,300 <ERROR> Exception caught while checking authentication for user 'null': Connection closed while facing request 200000164603e0803
and this in browser console
Code:
POST http://localhost:8282/lightstreamer/create_session.js 500 (Internal Server Error)
and this request data in network tab
Code:
  • General
    • Request URL: http://localhost:8282/lightstreamer/create_session.js
    • Request Method: POST
    • Status Code: 500 Internal Server Error
    • Remote Address: [::1]:8282
    • Referrer Policy: no-referrer-when-downgrade
  • Response Headersview source
    • Access-Control-Allow-Credentials: true
    • Access-Control-Allow-Origin: http://localhost:8282
    • Connection: close
    • Content-Length: 0
    • Date: Tue, 3 Jul 2018 13:06:27 GMT
    • Server: Lightstreamer-Server/7.0.1 build 1885 (Lightstreamer Server - www.lightstreamer.com) ENTERPRISE edition
    • x-accel-buffering: no
  • Request Headersview source
    • Accept: */*
    • Accept-Encoding: gzip, deflate, br
    • Accept-Language: en-US,en;q=0.9
    • Connection: keep-alive
    • Content-Length: 189
    • Content-Type: application/x-www-form-urlencoded
    • Host: localhost:8282
    • Origin: http://localhost:8282
    • Referer: http://localhost:8282/chat/
    • User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36
  • Form Dataview sourceview URL encoded
    • LS_op2: create
    • LS_phase: 10081
    • LS_cause: nullresp
    • LS_polling: true
    • LS_polling_millis: 0
    • LS_idle_millis: 0
    • LS_cid: pcYgxn8m8 feOojyA1T671i3g2.pz479lDw
    • LS_adapter_set: PROXY_PHPCHAT
    • LS_container: lsc
    • [COLOR=rgba(84, 84, 84, 0.5)](empty)
Can someone tell me where the problem is?