原来项目工程angular 8 后面又开了另外的项目，angular 11 后来原来angular 8旧项目就出现问题了
vscode 运行正常，但是到了浏览器渲染时报错。
node_modules删了，重新npm i ，以为@angular/cli 冲突，也npm unstall @angular/cli 还是有问题。希望能在这找到答案。
ERROR Error: Uncaught (in promise): Error: Unable to find context associated with [object HTMLDivElement]
Error: Unable to find context associated with [object HTMLDivElement]
at loadLContext (core.js:24229:1)
at loadLContextFromNode (core.js:24290:26)
at getListeners (core.js:24338:1)
at DebugElement__POST_R3__.get listeners [as listeners] (core.js:41937:1)
at DebugRenderer2.listen (core.js:45981:1)
at listenToElementOutputs (core.js:42928:42)
at createViewNodes (core.js:44192:1)
at callViewAction (core.js:44678:1)
at execComponentViewsAction (core.js:44583:1)
at createViewNodes (core.js:44257:1)
at resolvePromise (zone-evergreen.js:797:1)
at resolvePromise (zone-evergreen.js:754:1)
at zone-evergreen.js:858:1
at ZoneDelegate.invokeTask (zone-evergreen.js:391:1)
at Object.onInvokeTask (core.js:39688:1)
at ZoneDelegate.invokeTask (zone-evergreen.js:390:1)
at Zone.runTask (zone-evergreen.js:168:1)
at drainMicroTaskQueue (zone-evergreen.js:559:1)
