"parserOptions.project" has been set for @typescript-eslint/parser

Question

I created a new React Native project with --template typescript

I deleted the template directory which came as part of the boilerplate.

I then proceeded to add ESLint:

module.exports = {
  parser: "@typescript-eslint/parser",
  plugins: ["@typescript-eslint"],
  extends: ["airbnb-typescript-prettier"]
};

However, when I open babel.config.js, I get this error

Parsing error: "parserOptions.project" has been set for @typescript-eslint/parser. The file does not match your project config: /Users/Dan/site/babel.config.js. The file must be included in at least one of the projects provided.eslint

Answer 1

You can create a separate TypeScript config file (tsconfig.eslint.json) intended for eslint configuration. That file extends tsconfig configuration and setups include key for files that have to be linted.

.eslint.js:

// ...
parserOptions: {
  // ...
  project: "./tsconfig.eslint.json",
  // ...
},
// ...

tsconfig.eslint.json:

{
  "extends": "./tsconfig.json",
  "include": [
    // ...
    "babel.config.js"
  ]
}

Or if you want to ignore it, you can put it into .eslintignore.

.eslintignore:

// ...
babel.config.js