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Webpack and Vite Build Errors — Module Resolution, Bundling, and Plugin Failures

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Overview

Fix Webpack and Vite build errors including module not found, loader configuration issues, plugin failures, and memory exhaustion during bundling.

Key Details

  • Webpack and Vite are JavaScript bundlers that compile modules into browser-compatible bundles
  • Module not found errors are the most common — caused by missing packages, wrong paths, or resolve config
  • Webpack loaders transform files (CSS, images, TypeScript) into JavaScript modules
  • Vite uses native ESM in development and Rollup for production builds
  • Memory exhaustion (JavaScript heap out of memory) occurs with large codebases or circular dependencies

Common Causes

  • Module not found: package not installed, path typo, or missing resolve extensions/aliases
  • Loader not configured for a file type (importing CSS without css-loader, images without file-loader)
  • Vite production build using Node.js API not available in the browser (fs, path, crypto)
  • JavaScript heap out of memory during bundling of large projects

Steps

  1. 1For module not found: verify the package is in package.json and node_modules, check import path spelling
  2. 2Configure resolve aliases: resolve.alias in webpack.config.js or resolve.alias in vite.config.ts
  3. 3Increase Node.js memory: 'NODE_OPTIONS=--max-old-space-size=8192 npm run build'
  4. 4For Vite browser errors: use 'define' config to replace Node.js globals, or install browser-compatible polyfills
  5. 5Check build output for warnings: 'npm run build 2>&1 | grep -i error' to find the root error

Tags

webpackvitebuildbundlermodule-resolution

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Frequently Asked Questions

Vite is recommended for new projects — faster development server using native ESM and simpler configuration. Webpack is more mature with extensive plugin ecosystem. Existing Webpack projects can migrate gradually.