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[Solved] Uncaught ReferenceError: process is not defined

Hello Guys, How are you all? Hope You all Are Fine. Today I get the following error Uncaught ReferenceError: process is not defined in javascript. So Here I am Explain to you all the possible solutions here.

Without wasting your time, Let’s start This Article to Solve This Error.

How Uncaught ReferenceError: process is not defined Error Occurs?

Today I get the following error Uncaught ReferenceError: process is not defined in javascript.

How To Solve Uncaught ReferenceError: process is not defined Error ?

  1. How To Solve Uncaught ReferenceError: process is not defined Error ?

    To Solve Uncaught ReferenceError: process is not defined Error If you are using the npm module dotenv-webpack with Webpack 3, it might be because you are using destructuring, like so:

  2. Uncaught ReferenceError: process is not defined

    To Solve Uncaught ReferenceError: process is not defined Error If you are using the npm module dotenv-webpack with Webpack 3, it might be because you are using destructuring, like so:

Solution 1

Webpack can inject environment variables into the “client side” .js code (very useful in case of SPA/PWA). You should define them as plugins in webpack.config.js

webpack.config.js

module.exports = {
plugins: [
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV),
      'process.env.MY_ENV': JSON.stringify(process.env.MY_ENV),
      ... and so on ...
    })
],
}

Now you can access it on client side:

app.js

// Something like that
if(process.env.NODE_ENV === 'debug'){
    setDebugLevel(1)
}

Solution 2

If you are using the npm module dotenv-webpack with Webpack 3, it might be because you are using destructuring, like so:

const { ENV1, ENV2 } = process.env;

This is a known issue.

Ugly workaround is:

const { ENV1 } = process.env;
const { ENV2 } = process.env;

Summery

It’s all About this issue. Hope all solution helped you a lot. Comment below Your thoughts and your queries. Also, Comment below which solution worked for you? Thank You.

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