webpack

Tree-shaking removing needed code

Tree shaking.*side effects|sideEffects.*false.*unexpected

Fixes

1.Mark files with side effects in package.json sideEffects array
2.Use /*#__PURE__*/ annotation for tree-shakable function calls
3.Check that imports use named exports, not namespace imports (import * as)

webpacktree-shakingbundle-size

Related Errors

Webpack/Vite module not found

Module not found.*Can't resolve

•Install the missing package: npm install <package-name>
•Check import path for typos and correct relative path resolution

Webpack missing loader for file type

You may need an appropriate loader|Module parse failed.*Unexpected token

•Install and configure the appropriate loader (babel-loader, ts-loader, css-loader)
•Add the file extension to module.rules in webpack config

Dynamic chunk loading failure at runtime

ChunkLoadError|Loading chunk.*failed|Chunk.*not found

•Add retry logic for dynamic imports: catch error and retry import()
•Ensure CDN/server serves all chunk files from correct publicPath