taro2转taro3，typescript编译报错

jd_422b8bf7ee726

报错图片：

报错代码：

import { PureComponent } from 'react'
import PropTypes, { InferProps } from 'prop-types'
import { View } from '@tarojs/components'
import { CountdownProps, CountdownState } from '@/types/countdown'
import CountdownItem from './item/index'

const DAY_TO_SECONDS = 24 * 60 * 60
const HOUR_TO_SECONDS = 60 * 60

export default class ZtCountdown extends PureComponent<CountdownProps, CountdownState> {
  public static propTypes: InferProps<CountdownProps>
  public static defaultProps: CountdownProps

  constructor(props: CountdownProps) {
    super(props)
    this.state = {
      day: 0,
      hour: 0,
      minute: 0,
      second: 0,
    } as CountdownState
  }

  componentDidMount(): void {
    this.startCountDown()
  }
  // ...
}

// package.json
"@babel/core": "^7.1.2",
    "@babel/plugin-proposal-class-properties": "^7.1.0",
    "@babel/plugin-transform-react-jsx": "^7.0.0",
    "@babel/preset-env": "^7.1.0",
    "@jiahuix/mini-html-parser2": "^0.1.6",
    "@tarojs/cli": "~3.0.2",
    "@tarojs/components": "~3.0.2",
    "@tarojs/mini-runner": "~3.0.2",
    "@tarojs/plugin-babel": "^2.2.2",
    "@tarojs/plugin-csso": "^2.2.2",
    "@tarojs/plugin-sass": "^2.2.2",
    "@tarojs/plugin-uglifyjs": "^2.2.2",
    "@tarojs/react": "~3.0.2",
    "@tarojs/router": "^2.2.2",
    "@tarojs/runtime": "~3.0.2",
    "@tarojs/taro": "~3.0.2",
    "@tarojs/taro-alipay": "^2.2.2",
    "@tarojs/taro-h5": "^2.2.2",
    "@tarojs/taro-swan": "^2.2.2",
    "@tarojs/taro-weapp": "^2.2.2",
    "@tarojs/webpack-runner": "^2.2.2",
    "@types/react": "^16.8.20",
    "@types/react-dom": "^17.0.0",
    "@types/sinon": "^5.0.5",
    "@types/webpack-env": "^1.13.6",
    "@typescript-eslint/eslint-plugin": "^2.26.0",
    "@typescript-eslint/parser": "^2.26.0",
    "@vuepress/plugin-active-header-links": "^1.0.0-rc.1",
    "@vuepress/plugin-back-to-top": "^1.0.0-rc.1",
    "@vuepress/plugin-nprogress": "^1.0.0-rc.1",
    "@vuepress/plugin-search": "^1.0.0-rc.1",
    "axios": "^0.21.1",
    "babel-core": "^7.0.0-bridge.0",
    "babel-eslint": "^10.0.1",
    "babel-jest": "^23.6.0",
    "babel-plugin-transform-class-properties": "^6.24.1",
    "babel-plugin-transform-decorators-legacy": "^1.3.4",
    "babel-plugin-transform-jsx-stylesheet": "^0.6.5",
    "babel-plugin-transform-object-rest-spread": "^6.26.0",
    "babel-plugin-transform-runtime": "^6.23.0",
    "babel-preset-env": "^1.6.1",
    "classnames": "^2.2.6",
    "cross-env": "^5.2.1",
    "eslint": "^6.8.0",
    "eslint-plugin-import": "^2.20.2",
    "eslint-plugin-react": "^7.19.0",
    "eslint-plugin-react-hooks": "^3.0.0",
    "highlight": "^0.2.4",
    "highlight.js": "^9.15.10",
    "husky": "^4.2.3",
    "jest": "^23.6.0",
    "lint-staged": "^8.0.3",
    "marked": "^1.2.8",
    "nerv-server": "^1.4.3",
    "nerv-test-utils": "^1.4.3",
    "nervjs": "^1.4.3",
    "prettier": "^2.2.1",
    "prop-types": "^15.7.2",
    "react": "^17.0.1",
    "regenerator-runtime": "^0.12.1",
    "simulant": "^0.2.2",
    "sinon": "^7.1.0",
    "stylus": "^0.54.8",
    "typescript": "~3.7.2",
    "vuepress": "^1.0.3"