Fixing Nodemon Issue on Linux with Zero OS

In this article, we will discuss how to fix the Nodemon issue in Linux ZeroOS. Nodemon is a popular development tool used to automatically restart your Node.js application when files change. However, some users have reported issues with Nodemon not working correctly in Linux ZeroOS.

Prerequisites

Before we begin, make sure you have the following prerequisites:

• Node.js and Nodemon installed
• A Node.js project

Step 1: Check Node.js and Nodemon Version

The first step is to check if you have the latest versions of Node.js and Nodemon installed. Open your terminal and run the following commands:

 node --version
 npm --version
 npm install -g nodemon

 

Step 2: Check Firewall Settings

If Nodemon is not starting, check if your firewall is blocking it. Run the following command to check the status of your firewall:

 sudo ufw status
 

If your firewall is enabled, add an exception for Nodemon by running:

 sudo ufw allow 12345/tcp
 

Replace "12345" with the port number used by your Node.js application.

Step 3: Check Node.js Environment Variables

Nodemon may not work correctly if some Node.js environment variables are not set correctly. Open your terminal and run:

 echo $NODE_ENV
 

If the output is not "production", set it by running:

 export NODE_ENV=production
 

 
Step 4: Check Node.js Packages
 
If Nodemon is still not working, check if there are any issues with your Node.js packages. Run the following command to install all dependencies:
 
 npm install
 
 
Step 5: Check Nodemon Configuration
 
Make sure your Nodemon configuration is correct. Open your "package.json" file and check if you have the following script:
 
 "scripts": {
 "start": "nodemon index.js"
 }
 
 
If not, add it and save the file.
 
Step 6: Check Node.js Logs
 
If Nodemon is still not working, check the Node.js logs for any errors. Run:
 
 npm run start --inspect
 
 
This will start your Node.js application in debug mode, and you can check the logs in your terminal.
 
In this article, we discussed how to fix the Nodemon issue in Linux ZeroOS. We covered checking Node.js and Nodemon versions, firewall settings, Node.js environment variables, Node.js packages, and Nodemon configuration. By following these steps, you should be able to get Nodemon working correctly in your Linux ZeroOS environment.
 
References
 

 
Nodemon GitHub Page
 
Node.js Download Page
 
Ubuntu Firewall Guide