Error: src/app/app.component.html:7:57 - error TS2345: Argument of type ‘Event‘ is not assignable to

Error: src/app/app.component.html:7:57 - error TS2345: Argument of type ‘Event’ is not assignable to parameter of type ‘KeyboardEvent’.
Type ‘Event’ is missing the following properties from type ‘KeyboardEvent’: altKey, char, charCode, code, and 16 more.

7
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src/app/app.component.ts:5:16
5 templateUrl: ‘./app.component.html’,
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Error occurs in the template of component AppComponent.


有朋友学angular吗？？？这是怎么回事啊？？？
我是按照编译器推荐的方式解决的

Change Appcomponent.inPut() signature然后就成功了，但是并不知道什么原理，也不知道解决的对不对。

有大神可以解答嘛！！