Karma tests failing due to missing dependencies
When Karma tests fail due to missing dependencies, it typically means that the required libraries, modules, or files were not correctly included in the Karma test runner configuration. Let’s walk….
Tag: node_modules
Trying to run React app without running npm install first
Attempting to run a React application without first installing dependencies with npm install (or yarn install) will always fail because your project lacks the required packages to function. Here’s what….
Webpack not transpiling ES6+ correctly
Troubleshooting Webpack ES6+ Transpilation Issues If Webpack isn’t correctly transpiling your ES6+ code to browser-compatible JavaScript, here are the key areas to check: Common Causes and Solutions 1. Missing or….
Missing dependencies – ReactDOM is not defined
This error occurs when ReactDOM isn’t properly imported or available in your project. Here’s how to resolve it: Standard Solutions 1. Correct Import Syntax (React 18+) 2. Legacy Import Syntax….
Module not found – Cannot find module ‘react’
This common React error occurs when your project can’t locate the React dependencies. Here’s how to systematically resolve it: Primary Solutions 1. Install Missing Dependencies 2. Verify Node Modules Advanced….