小程序数据库监听（即时通讯）报错，有时正常有时报错的
Error: errCode: -402002 realtime listener init watch fail | errMsg: login fail Error: wsclient.send timedout history states: UNINIT-(loginStart)->INIT_LOGGING_IN-(loginFail)->INIT_LOGIN_FAIL-(loginStart)->INIT_LOGGING_IN-(loginFail)->INIT_LOGIN_FAIL-(loginStart)->INIT_LOGGING_IN-(loginFail)->INIT_LOGIN_FAIL-(close)->CLOSED at new g (VM1690 WAService.js:2) at _FSMListener (VM1690 WAService.js:2) at VM1690 WAService.js:2 at Set.forEach (<anonymous>) at co.transition (VM1690 WAService.js:2) at li.<anonymous> (VM1690 WAService.js:2) at VM1690 WAService.js:2 at Object.throw (VM1690 WAService.js:2) at o (VM1690 WAService.js:2)(env: Windows,mp,1.05.2105170; lib: 2.14.1) onError @ app.js? [sm]:133 (anonymous) @ VM1690 WAService.js:2 C @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 c @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 C @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 li.closeWithError @ VM1690 WAService.js:2 _FSMListener @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 co.transition @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 o @ VM1690 WAService.js:2 Promise.then (async) i @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 c @ VM1690 WAService.js:2 _login @ VM1690 WAService.js:2 _FSMListener @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 co.transition @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 o @ VM1690 WAService.js:2 Promise.then (async) i @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 c @ VM1690 WAService.js:2 _login @ VM1690 WAService.js:2 _FSMListener @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 co.transition @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 o @ VM1690 WAService.js:2 Promise.then (async) i @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 c @ VM1690 WAService.js:2 _login @ VM1690 WAService.js:2 _parentFSMListener @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 co.transition @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 n @ VM1690 WAService.js:2 Promise.then (async) i @ VM1690 WAService.js:2 n @ VM1690 WAService.js:2 Promise.then (async) i @ VM1690 WAService.js:2 n @ VM1690 WAService.js:2 Promise.then (async) i @ VM1690 WAService.js:2 n @ VM1690 WAService.js:2 Promise.then (async) i @ VM1690 WAService.js:2 n @ VM1690 WAService.js:2 Promise.then (async) i @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 c @ VM1690 WAService.js:2 initWebSocketConnection @ VM1690 WAService.js:2 pi.watch @ VM1690 WAService.js:2 watch @ VM1690 WAService.js:2 monitor @ app.js? [sm]:100 (anonymous) @ VM1690 WAService.js:2 _callee$ @ app.js? [sm]:86 L @ regenerator.js:1 (anonymous) @ regenerator.js:1 t.<computed> @ regenerator.js:1 asyncGeneratorStep @ asyncToGenerator.js:1 c @ asyncToGenerator.js:1 Promise.then (async) asyncGeneratorStep @ asyncToGenerator.js:1 c @ asyncToGenerator.js:1 (anonymous) @ asyncToGenerator.js:1 (anonymous) @ asyncToGenerator.js:1 onLaunch @ app.js? [sm]:10 (anonymous) @ VM1690 WAService.js:2 EA @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 (anonymous) @ VM1690 WAService.js:2 (anonymous) @ app.js? [sm]:10 require @ VM1690 WAService.js:2 (anonymous) @ VM1762:3 doWhenAllScriptLoaded @ VM1760:605 scriptLoaded @ VM1760:625 (anonymous) @ VM1760:650 Promise.then (async) (anonymous) @ VM1760:676 (anonymous) @ VM1760:680 loadScripts @ assubloader.js:1 async function (async) loadScripts @ assubloader.js:1 loadAppResourceScripts @ assubloader.js:1 (anonymous) @ VM1756:1 t.loadScripts @ VM105 asdebug.js:1 loadAppService @ VM105 asdebug.js:1 messagerCallback @ VM105 asdebug.js:1 (anonymous) @ VM105 asdebug.js:1 f @ VM105 asdebug.js:1 g @ VM105 asdebug.js:1 (anonymous) @ VM105 asdebug.js:1 _ws.onmessage @ VM105 asdebug.js:1
