btsyncコアダンプが起動時に "!directory.empty()"エラーを発生させるのはなぜですか？

btsync別のシステムで動作することが知られているプロファイルを使用してFedora 21を新しくインストールし、BitTorrent Sync（x64バージョン）1.4.110を実行すると、次のような混乱するエラーメッセージが表示されます。

$ btsync --config /home/user/.btsync.conf
btsync: /mnt/jenkins/workspace/Build-Sync-x64/linux/breakpad/client/linux/handler/minidump_descriptor.h:55: google_breakpad::MinidumpDescriptor::MinidumpDescriptor(const string&): Assertion `!directory.empty()' failed.
Aborted (core dumped)

Jenkinsは私のシステムにインストールされていません。これは、BitTorrent組織のリリースエンジニアリングビルドサーバー環境のシンボルを使用してコンパイルされたBitTorrent Syncバージョンのように見えます。へへ。

問題は何ですか？これは私の設定ファイルです/home/user/.btsync.conf。

{
  "device_name": "MyLaptop",
  "listening_port" : 0, // 0 - randomize port

/* storage_path dir contains auxilliary app files if no storage_path field: .sync dir created in the directory
   where binary is located. otherwise user-defined directory will be used */
 "storage_path" : "/home/user/.btsync",

/* set location of pid file */
 "pid_file" : "/var/run/btsync/btsync.pid",

/* use UPnP for port mapping */
  "use_upnp" : true,

/* limits in kB/s. 0 - no limit */
  "download_limit" : 0,
  "upload_limit" : 0,

/* proxy configuration */
// "proxy_type" : "socks4", // Valid types: "socks4", "socks5", "http_connect". Any other value means no proxy
// "proxy_addr" : "192.168.1.2", // IP address of proxy server.
// "proxy_port" : 1080,
// "proxy_auth" : false, // Use authentication for proxy. Note: only username/password for socks5 (RFC 1929) is supported, and it is not really secure
// "proxy_username" : "user",
// "proxy_password" : "password",

  "webui" :
  {
//    "listen" : "0.0.0.0:8888" // remove field to disable WebUI

/* preset credentials. Use password or password_hash */
//  ,"login" : "admin"
//  ,"password" : "password"
//  ,"password_hash" : "some_hash" // password hash in crypt(3) format
//  ,"allow_empty_password" : false // Defaults to true
/* ssl configuration */
//  ,"force_https" : true // disable http
//  ,"ssl_certificate" : "/path/to/cert.pem"
//  ,"ssl_private_key" : "/path/to/private.key"

/* directory_root path defines where the WebUI Folder browser starts (linux only). Default value is / */
//  ,"directory_root" : "/home/user/MySharedFolders/"

/* dir_whitelist defines which directories can be shown to user or have folders added (linux only)
   relative paths are relative to directory_root setting */
//  ,"dir_whitelist" : [ "/home/user/MySharedFolders/personal", "work" ]
  }

/* !!! if you set shared folders in config file WebUI will be DISABLED !!!
   shared directories specified in config file  override the folders previously added from WebUI. */
,
  "shared_folders" :
  [
    {
      "secret" : "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", // required field - use --generate-secret in command line to create new secret
      "dir" : "/home/user/SyncFolder1", // * required field
      "use_relay_server" : true, //  use relay server when direct connection fails
      "use_tracker" : true,
      "use_dht" : false,
      "search_lan" : true,
      "use_sync_trash" : true, // enable SyncArchive to store files deleted on remote devices
      "overwrite_changes" : false, // restore modified files to original version, ONLY for Read-Only folders
      "known_hosts" : // specify hosts to attempt connection without additional search
      [
        "192.168.0.201:8888"
      ]
    },
    {
      "secret" : "BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB", // required field - use --generate-secret in command line to create new secret
      "dir" : "/home/user/SyncFolder2", // * required field
      "use_relay_server" : true, //  use relay server when direct connection fails
      "use_tracker" : true,
      "use_dht" : false,
      "search_lan" : true,
      "use_sync_trash" : true, // enable SyncArchive to store files deleted on remote devices
      "overwrite_changes" : false, // restore modified files to original version, ONLY for Read-Only folders
      "known_hosts" : // specify hosts to attempt connection without additional search
      [
        "192.168.0.201:8888"
      ]
    }
  ]


/* Advanced preferences can be added to config file. Info is available at http://sync-help.bittorrent.com */

}