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"
