jitsi - Jitsi 在控制台中出现错误 - 错误：焦点错误，之后重试

Question

我是第一次使用 jitsi。我使用这个存储库来安装它。但它不能正常工作。我无法通过这个连接两个客户端。在控制台中，我收到以下错误

[JitsiMeetJS.js] <Object.getGlobalOnErrorHandler>:  UnhandledError: null Script: null Line: null Column: null StackTrace:  Error: Focus error, retry after 1000
    at o._allocateConferenceFocusError (moderator.js:388)
    at moderator.js:320
    at u.Handler.handler (app.bundle.min.js?v=1967:104)
    at u.Handler.run (app.bundle.min.js?v=1967:104)
    at app.bundle.min.js?v=1967:104
    at Object.forEachChild (app.bundle.min.js?v=1967:104)
    at u.Connection._dataRecv (app.bundle.min.js?v=1967:104)
    at e.Bosh._onRequestStateChange (app.bundle.min.js?v=1967:105)
r @ Logger.js:125
getGlobalOnErrorHandler @ JitsiMeetJS.js:504
window.onerror @ app.bundle.min.js?v=1967:87
callErrorHandler @ GlobalOnErrorHandler.js:63
o._allocateConferenceFocusError @ moderator.js:388
(anonymous) @ moderator.js:320
(anonymous) @ app.bundle.min.js?v=1967:104
run @ app.bundle.min.js?v=1967:104
(anonymous) @ app.bundle.min.js?v=1967:104
forEachChild @ app.bundle.min.js?v=1967:104
_dataRecv @ app.bundle.min.js?v=1967:104
_onRequestStateChange @ app.bundle.min.js?v=1967:105
Logger.js:125 [modules/xmpp/moderator.js] <o._allocateConferenceFocusError>:  Focus error, retry after 1000 <iq xmlns=​"jabber:​client" type=​"error" to=​"c9c1d353-8924-487a-b0f7-0e66a6d65d1d@10.207.139.88/​876e1e6b-4949-4239-aad2-66fe898c4234" from=​"focus.10.207.139.88" id=​"c8401ace-5f20-46d5-a0cd-47429ae4e929:​sendIQ">​…​&lt;/iq>​
r @ Logger.js:125
o._allocateConferenceFocusError @ moderator.js:389
(anonymous) @ moderator.js:320
(anonymous) @ app.bundle.min.js?v=1967:104
run @ app.bundle.min.js?v=1967:104
(anonymous) @ app.bundle.min.js?v=1967:104
forEachChild @ app.bundle.min.js?v=1967:104
_dataRecv @ app.bundle.min.js?v=1967:104
_onRequestStateChange @ app.bundle.min.js?v=1967:105
app.bundle.min.js?v=1967:44 [conference.js] <e.value>:  CONFERENCE FAILED: conference.focusDisconnected focus.10.207.139.88 1

机器细节。Ubuntu : 14.06

我在这里使用我的自签名证书。我的情况与此类似。但这里也不建议提供适当的解决方案。下面附上我当前的屏幕截图。