[Fixed] node npm error code Z_DATA_ERROR errno -3 zlib: incorrect data check – Node.js

The Problem:

The user is facing an error while running tsc on their typescript project. They are getting the following error:

npm ERR! code Z_DATA_ERROR npm ERR! errno -3 npm ERR! zlib: incorrect data check

The Solutions:

Solution 1: Downgrade Node.js and reinstall TypeScript

Explanation:

A bug in the latest Node.js version can cause "zlib: incorrect data check" errors during npm installations. To resolve this issue:

1. Install Node Version Manager (nvm), if not already installed.
2. Downgrade to Node.js version 14.17 using nvm by running nvm install 14.17 and nvm alias default 14.17.
3. Reinstall TypeScript using npm install typescript --save-dev.
4. Ensure your JS project builds successfully.
5. Edit the tsconfig.json file according to TypeScript’s migration guide and run tsc.

This should resolve the "zlib: incorrect data check" error and allow you to build TypeScript projects successfully.