Cannot find type definition file for 'node' in Typescript/React app [duplicate]

Question

I noticed not too long ago, whenever I try to start my app, I receive plenty of Cannot find name 'require' and Cannot find type definition file for 'node' and a Cannot find type definition for 'react-router'

Some solutions I have already tried are:

1) adding a types: ["node"] in my tsconfig.json, as you all can see below.

2) adding @types/node in my package.json, which you all can see here.

3) removing node_modules and re yarning, to no avail. I've also deleted yarn.lock as well and the issue persists.

4) Adding a typeRoots: ["node_modules/@types/node"], which didn't seem to do much.

// Package.json 
"devDependencies": {
    "@types/lodash": "^4.14.110",
    "@types/node": "^10.12.18",
    "@types/react": "16.3.12",
    "@types/react-dom": "15.5.0",
    "@types/react-router": "4.0.11",
    "babel-core": "6.26.3",
    "babel-loader": "7.1.5",
    "babel-preset-es2015": "6.24.1",
    "babel-preset-react": "6.24.1",
    "css-loader": "1.0.0",
    "extract-text-webpack-plugin": "2.0.0-beta.4",
    "html-webpack-plugin": "2.24.1",
    "react": "15.5.4",
    "react-dom": "15.5.4",
    "react-router-dom": "4.1.1",
    "rimraf": "2.6.2",
    "style-loader": "0.22.1",
    "ts-loader": "1.2.1",
    "typescript": "3.2.2",
    "url-loader": "1.0.1",
    "webpack": "2.2.0",
    "webpack-dev-server": "1.16.2"
  }

//tsconfig.json (at root level)
{
    "compilerOptions": {
    "baseUrl": "./",
    "target": "es2016",
    "pretty": true,
    "module": "commonjs",
    "sourceMap": true,
    "jsx": "preserve",
    "outDir": "./dist/",
    "noImplicitAny": false,
    "preserveConstEnums": true,
    "strict": true,
    "allowSyntheticDefaultImports": true,
    "types": ["node"],
    "paths": {
      "*": ["node_modules/@types/*", "*"]
    }
  },
  "include": [
    "src/**/*"
  ],
  "exclude": [
    "node_modules"
  ]
}

The above tsconfig and package.json combination yield the following errors:

ERROR in ./src/index.tsx
(5,1): error TS2580: Cannot find name 'require'. Do you need to install type definitions for node? Try `npm i @types/node` and then add `node` to the types field in your tsconfig.

ERROR in /Users/johnli/Documents/portfolio/tsconfig.json
error TS2688: Cannot find type definition file for 'node'.

Some odd behavior that I noticed is that adding types: ["node"] will erase my Cannot find type definition file for 'react-router' but not for node. Adding react-router produces the error for both node and react-router, and removing the types attribute entirely also yields an error for both node and react-router.

I would like to refrain from using declare var require: any as the solution, since that doesn't resolve the heart of the issue and more of a patch.

Some more information should it be useful: node version is 11.6.0 and yarn version is 1.13.0

Any other suggestions to get this working? I can't seem to find any other solutions aside from the ones I tried above. I can also supply more information should that be needed. Thanks all!

Answer 1

Run

npm install @types/node --save-dev

and in tsconfig file add: -

     {
      "compilerOptions": {
        "types": ["node"]
      }
    }