This error means a required module isn't found, usually due to incorrect path or missing install. Rechecking paths or installing modules often helps.

'Module not found' errors in Node.js typically occur when the application tries to import a module that isn’t available or can’t be located. This can result from typos in module names, incorrect file paths, or the module not being installed locally. Double-checking the module’s name and path is a quick solution, as even slight mistakes can disrupt module loading. If using relative paths for local files, verify that the path reflects the project’s directory structure accurately. Running npm install ensures all dependencies in package.json are installed and accessible. In larger projects, especially monorepos, ensuring modules are referenced correctly, particularly in shared libraries, is critical. Additionally, clearing the node_modules folder and package-lock.json and then reinstalling dependencies can resolve issues caused by partially installed or corrupted modules. Managing modules carefully prevents common errors and improves application stability.