__methodCaller报错

开发工具首页报错 说明是小程序开发工具报的这个错误，不是定时的出现

TypeError: Cannot read property ‘__methodCaller’ of undefined

    at Function.u.getMethodCaller (WAService.js:14)

    at WAService.js:16

    at d (WAService.js:16)

    at a (appservice?t=1531401295104:2987)

    at e.registerCallback (appservice?t=1531401295104:2987)

    at m.forEach (appservice?t=1531401295104:2987)

    at Array.forEach (<anonymous>)

    at d (appservice?t=1531401295104:2987)

    at WebSocket.j.onmessage (appservice?t=1531401295104:2987)