The error message you're encountering, "Cannot find module 'server'", indicates that the Node.js module 'server' is missing or not properly installed in your project.

To resolve this issue, you can follow these steps:

1. Install 'server' Module: Open a terminal or command prompt and navigate to your project directory. Then, run the following command to install the 'server' module:

    

• npm install semver

  This will download and install the 'server' module in your project.

• Check for 'semver' in package.json: Make sure that the 'server' module is listed as a dependency in your package.json file. It should look something like this:

  JSON
• "dependencies": { "semver": "^x.x.x" // ... }

  If it's not there, add it manually and run npm install again.

• Verify the 'node_modules' Directory: After running, make sure that the 'server' module is present in the 'node_modules' directory within your project.

• Restart Your Application: If you were running your Node.js application, stop it and then start it again. This ensures that the changes take effect.

• Check for Typos: Double-check your code to ensure that you're requiring 'server' correctly. The statement should look like this:

  javascript
• const semver = require('semver');

  Make sure there are no typos in the module name or path.

• Clear npm Cache: In some cases, npm's cache might have become corrupted. You can try clearing the cache with the following command: