昨天更新开发者工具到最新版本后，就一直报这个错，但也不影响项目调试，测试。

比较奇怪的是这个 at WebSocket._ws.onmessage

我运行别的不带websocket项目，也是提示这个报错。

后面是，所有项目都报这个错。。。。。。

如下所示：

VM2374:1

SystemError (appServiceSDKScriptError)

Cannot read property 'forceUpdate' of undefined

TypeError: Cannot read property 'forceUpdate' of undefined

at http://127.0.0.1:40842/appservice/__dev__/WAService.js:2:1338308

at http://127.0.0.1:40842/appservice/__dev__/WAService.js:2:648164

at o (http://127.0.0.1:40842/appservice/__dev__/asdebug.js:1:3197)

at e.exports.<anonymous> (http://127.0.0.1:40842/appservice/__dev__/asdebug.js:1:3577)

at http://127.0.0.1:40842/appservice/__dev__/asdebug.js:1:1844

at Array.forEach (<anonymous>)

at WebSocket._ws.onmessage (http://127.0.0.1:40842/appservice/__dev__/asdebug.js:1:1826)