What are some common errors in Express.js and how can I fix them?

What are some common errors I might encounter while using Express.js?

Some common errors in Express.js include 'Cannot GET /', '404 Not Found', and 'TypeError: Cannot read property'. Would you like to know how to fix them?

Yes, please explain how to fix the 'Cannot GET /' error.

The 'Cannot GET /' error usually means that there is no route defined for the requested URL. To fix it, ensure you have defined a route for the path you are trying to access.

What about the '404 Not Found' error?

The '404 Not Found' error occurs when the server cannot find the requested resource. You can handle this by adding a middleware function to catch all undefined routes and return a custom 404 page.