typescript - TS2345 : type 'Construct' is not a class derived from 'Construct'

Question

按照此页面上的教程:https://cdkworkshop.com/20-typescript/40-hit-counter/300-resources.html

我相信this ，传递给 Table构造函数，应该是 HitCounter , cdk.Construct的子构造器

它返回这个 lint:

this: this
Argument of type 'this' is not assignable to parameter of type 'Construct'.
  Type 'HitCounter' is not assignable to type 'Construct'.
    Property 'onValidate' is protected but type 'Construct' is not a class derived from 'Construct'.ts(2345)

在这一步我也收到内部服务器错误。有谁知道是什么问题？

import * as cdk from "@aws-cdk/core";
import * as lambda from "@aws-cdk/aws-lambda";
import * as dynamodb from "@aws-cdk/aws-dynamodb";

export interface HitCounterProps { downstream : lambda.IFunction; }

export class HitCounter extends cdk.Construct {
   public readonly handler: lambda.Function;

   constructor(scope: cdk.Construct, id: string, props: HitCounterProps) {
      super(scope, id);

      const table = new dynamodb.Table(this, "Hits", { // lints `this`
         partitionKey : { 
            name : "path", 
            type : dynamodb.AttributeType.STRING 
         }
      });
      <more code removed>
   }
}

Answer 1

我遇到过同样的问题。您必须将所有不同的 cdk 包设置为相同的版本，请参阅 https://github.com/aws/aws-cdk/issues/542#issuecomment-449694450 .