Framework Error

What This Error Means

This error occurs when a required peer dependency is missing from the project, preventing the application from running properly. In this case, the '@nestjs/core' module requires either 'express' or 'http' to be installed.

Why It Happens

This error typically happens when a developer sets up a new project with a framework like NestJS, but forgets to install the required peer dependencies. This can happen when using npm or yarn to manage dependencies.

How to Fix It

1. 1To fix this error, you need to install the required peer dependency using the following command: npm install express or yarn add express. Alternatively, you can install 'http' using npm install http or yarn add http.

Example Code Solution

const { NestFactory } = require('@nestjs/core');

npm install express // or yarn add express
const { NestFactory } = require('@nestjs/core');