Couldn't find a declaration file for module 'react'

Describe the bug

I created a typescript template create-react-app by running npx create-react-app --template typescript and tried to import useEffect and useState. After I import and save file, I got an error: Could not find a declaration file for module ‘react’

Did you try recovering your dependencies?

6.14.6

Environment

current version of create-react-app: 4.0.0 running from /Users/healer/.npm/_npx/25783/lib/node_modules/create-react-app

System: OS: macOS High Sierra 10.13.6 CPU: (6) x64 Intel® Core™ i5-8400 CPU @ 2.80GHz Binaries: Node: 10.22.1 - ~/.nvm/versions/node/v10.22.1/bin/node Yarn: 1.22.4 - /usr/local/bin/yarn npm: 6.14.6 - ~/.nvm/versions/node/v10.22.1/bin/npm Browsers: Chrome: 86.0.4240.111 Edge: 86.0.622.51 Firefox: 81.0.2 Safari: 13.0.5 npmPackages: react: ^17.0.1 => 17.0.1 react-dom: ^17.0.1 => 17.0.1 react-scripts: 4.0.0 => 4.0.0 npmGlobalPackages: create-react-app: Not Found

Steps to reproduce

1. run npx create-react-app --template typescript
2. open App.tsx and import useEffect and/or useState import React, { useEffect, useState } from 'react'
3. save file and refresh

Actual behavior

I got error and couldn’t run the project.

[JJ810]

@BrandonGardner2, you should run

npm install @types/react

to fix this issue. But I couldn’t find where to add this package in this repo.

[LudwigThePig]

I ran npx create-react-app my-app --template typescript as described in the create-react-app docs and saw the same error.

Why is this happening for clean runs?