Cannot find module 'body-parser'

To resolve the error "Cannot find module 'body-parser'", you can follow these steps:

1. First, make sure you have installed the 'body-parser' module in your project. You can do this by running the following command in your project directory:

   npm install body-parser

2. If you have already installed 'body-parser' but still encountering the error, it's possible that the module isn't listed as a dependency in your package.json file. In that case, you can try reinstalling it as a dependency by running:

   npm install body-parser --save

3. If the above steps didn't resolve the error, it might be a problem with your node_modules directory. In such cases, you can try deleting the node_modules directory and reinstalling all the dependencies by running:

   rm -rf node_modules
   npm install

By following these steps, you should be able to resolve the "Cannot find module 'body-parser'" error.