What are some common Express.js errors and their solutions?

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

Some common errors include 'Cannot GET /route', 'Middleware not found', and 'Unhandled promise rejection'. Would you like solutions for these?

Yes, please provide solutions for those errors.

For 'Cannot GET /route', ensure the route is defined correctly. For 'Middleware not found', check if the middleware is properly registered. For 'Unhandled promise rejection', always handle promises with try-catch or .catch.

What about error handling in Express?

In Express, you can use error-handling middleware by defining a function with four parameters: (err, req, res, next). This allows you to catch and respond to errors gracefully.