[Solved] ipv6 + custom btsync.conf problem

[cemc]

Hi

I have the following setup:

Ubuntu 14.04 64-bit machine + latest btsync (2.3.6). I'm trying to run btsync with the following conf file:

{
  "device_name": "test",
  "listening_port" : 31513,
  "use_upnp" : false,
  "check_for_updates" : false,
  "download_limit" : 0,
  "upload_limit" : 0,

  "shared_folders" :
  [
    {
      "secret" : "***",
      "dir" : "/home/btsync/material",
      "use_tracker" : true,
      "overwrite_changes" : true
    }
  ],

  "folder_defaults.use_relay" : false,
  "folder_defaults.use_tracker" : false,
  "folder_defaults.use_lan_broadcast" : false,
  "folder_defaults.delete_to_trash" : false,
  "disk_low_priority" : true,
  "folder_rescan_interval" : 14400,
  "send_statistics" : false,
  "sync_trash_ttl" : 0,
  "enable_journaling" : false,
  "peer_expiration_days" : 1
}

I'm running it with the following: ./btsync --nodaemon --config btsync.conf. Instead of running, I get the following error message and btsync just quits:

[20160404 21:12:34.925] ZIP: Can't locate [version] in zip, error -100.
[20160404 21:12:34.930] PLC[0x0000000001b7bc40] binding on 192.168.66.10:31513
[20160404 21:12:34.930] Socket[0x0000000001b7bc40][6] bound listening socket 6 to IP 192.168.66.10:31513
[20160404 21:12:34.930] UDP: bound listening socket 7 to IP 192.168.66.10:31513
[20160404 21:12:34.933] Unable to listen for HTTP traffic on port 0.  Exiting...

It seems when IPv6 is disabled on the machine, btsync won't run. If I enable IPv6, it runs just fine, with the same config file.

Is there any workaround to this? I tried to specify webui parameters explicitly, I tried 0.0.0.0:8888, and 127.0.0.1:8888, tried setting it to an empty string, tried running btsync with --webui.listen parameter, nothing helps, I just get the same error message. I've also tried setting bind_interface, no luck.

Is this a bug? Do I need to enabled IPv6 for btsync to run??

[cemc]

Nobody ran into this problem?

[Helen]

cemc,

apparently enabled webui is still saved somewhere in the settings, so sync tried to get to http. 

Are you ready to try a debug build and if necessary send the debug logs ? 

[cemc]

Sure. But I tried the current version with no previous .sync directory. Even if it's in the settings, why would it work with IPv6 enabled but not with IPv6 disabled?

[Helen]

the debug build with a  fix is reported to be working. No ETA for release though. So anyone who sees this problem, plz PM me.