New React app failed to compile immediatly following install

user_15079466 0
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I have been using React Native for a while but figured I would try out React on the web. So I followed this guide: https://reactjs.org/docs/create-a-new-react-app.html but after using npx create-react-app react-try , navigating to the new folder, and typing yarn start I get this error message:

Failed to compile.

./src/index.js 1:60
Module parse failed: Unexpected token (1:60)
File was processed with these loaders:
 * ./node_modules/@pmmmwh/react-refresh-webpack-plugin/loader/index.js
 * ./node_modules/react-scripts/node_modules/babel-loader/lib/index.js
You may need an additional loader to handle the result of these loaders.
> $RefreshRuntime$ = require('C:/Users/e096752/Documents/Cole's Git Repos/react-try/node_modules/react-refresh/runtime.js');
| $RefreshSetup$(module.id);

This is everything that was included with the create method: Project

Package.json

{
  "name": "react-try",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@testing-library/jest-dom": "^5.11.4",
    "@testing-library/react": "^11.1.0",
    "@testing-library/user-event": "^12.1.10",
    "react": "^17.0.1",
    "react-dom": "^17.0.1",
    "react-scripts": "4.0.2",
    "web-vitals": "^1.0.1"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": [
      "react-app",
      "react-app/jest"
    ]
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  }
}

If there is any other info you need please let me know. What in the world do I need to do?

yarnpkg npm create-react-app reactjs
9 Answers

There appears to be a problem with react-scripts 4.0.2. A workaround is to change version manually to 4.0.1 on package.json then run yarn install. That will do!

user_61003110

this problem happened for me because of the single quotation in the folder name, removing it solved the issue.

user_142835330

package.json -> change version to 4.0.1 in "react-scripts": "4.0.1" ->run npm install again

user_75078160

Just followed the terminal log and the issue was resolved:

  1. Delete package-lock.json (not package.json!) and/or yarn.lock in your project folder.
  2. Delete node_modules in your project folder.
  3. Remove "babel-loader" from dependencies and/or devDependencies in the package.json file in your project folder.
  4. Run npm install or yarn, depending on the package manager you use.
user_128587670

I used this below npm command. I get out of this problem. let's try once this
npm link

user_100499130

If your folder name has quotation marks like sample'app / "sample app", remove those quotation marks or delete folder and create app react app from first.

user_168713910

First update your react-scripts and remove webpack from your packages.json if you added.

Then you need to clear webpack cache so for doing this the ease way is remove node_modules and install them again

user_105027920

This mostly happens with loaders when one or more of the directories in your source file URL has an apostrophe.

in my own case it was;

$ react-scripts start Failed to compile.

./src/index.js 1:43 Module parse failed: Unexpected token (1:43) File was processed with these loaders: ./node_modules/@pmmmwh/react-refresh-webpack-plugin/loader/index.js * ./node_modules/react-scripts/node_modules/babel-loader/lib/index.jsYou may need an additional loader to handle the result of these loaders.> $RefreshRuntime$ = require('C:/Users/PETER'S/PROJECTS/REACT APPS/EGAS/egas/node_modules/react-refresh/runtime.js');| $RefreshSetup$(module.id);

you can quickly fix this by opening this file;

"*Project root directory*\node_modules@pmmmwh\react-refresh-webpack-plugin\loader\RefreshModule.runtime.js"

then change this line;

$RefreshRuntime$ = require('$RefreshRuntimePath$');

to the absolute URL equivalent (in my case);

$RefreshRuntime$ = require("C:/Users/PETER'S/PROJECTS/REACT APPS/project-root/node_modules/react-refresh/runtime.js");
user_164101510

Yeah, changing the "react-scripts": "4.0.2" -> "react-scripts": "4.0.1" in package.json file works. same goes for "react-scripts": "4.0.3" -> "react-scripts": "4.0.1"

user_163863250
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