Cannot find module 'react-bootstrap' with module other than commonjs - reactjs

Question

I use React with Typescript, but cannot use React Bootstrap with a module other than commonjs.
I first install react-bootstrap package:
$ npm i react-bootstrap
And then write the code to use it, for example,
// src/index.tsx
import { Button } from 'react-bootstrap';
But compiling it by npx tsc get an error Cannot find module 'react-bootstrap' or its corresponding type declarations. When I googled about this issue, I found that react-bootstrap has its own types (so I do not need #types/react-bootstrap).
If I set module in tsconfig.json to commonjs, then I can compile it correctly.
Why cannot I use react-bootstrap however? Are there other ways to use React Bootstrap together with Typescript (and with modules other than commonjs)?
The minimal example here:
package.json:
{
"name": "foo",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"type": "npx tsc --noEmit",
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC",
"devDependencies": {
"typescript": "^3.9.5"
},
"dependencies": {
"react-bootstrap": "^1.0.1"
}
}
tsconfig.json:
{
"compilerOptions": {
"target": "es2015",
"module": "es2015",
"skipLibCheck": true
},
"include": [
"src/**/*"
]
}
src/index.tsx:
import { Button } from 'react-bootstrap';
Then run
$ npm run type
> foo#1.0.0 type /home/bar/src/foo
> npx tsc --noEmit
src/index.tsx(1,24): error TS2307: Cannot find module 'react-bootstrap' or its corresponding type declarations.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! foo#1.0.0 type: `npx tsc --noEmit`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the foo#1.0.0 type script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! /home/bar/.npm/_logs/2020-07-04T12_11_17_351Z-debug.log

Answer 1

Clean npm modules cache using
$ npm cache clean --force
Delete node_modules by $ rm -rf node_modules package-lock.json or delete it manually
Install npm modules npm install
This worked for me. Hopes it works for you too.