Error when adding Tailwind CSS to an existing React - vite project

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Problem -
I'm working on a React project based on Vite. I want to add Tailwind CSS, and after following the steps below, I'm encountering an error. 1. npm install -D tailwindcss postcss autoprefixer Initialize Tailwind CSS 2. npx tailwindcss init -p The first command executed without errors. However, the second command resulted in the following error: npm error could not determine executable to run npm error A complete log of this run can be found in: C:\Users\HelloWorld\AppData\Local\npm-cache\_logs\2025-02-14T17_30_29_652Z-debug-0.log I tried by clear npm, Clear npm Cache It still didn't work. same error when run 2nd one.



Solution:

The installation of TailwindCSS v3 and v4 is different. You were expecting the v3 installation, but v4 is the new latest version. For v3 installation, use:

npm install -D tailwindcss@3

However, if you want to install v4, I recommend reviewing the installation guides, as there are significant breaking changes between v3 and v4.

npm install tailwindcss @tailwindcss/vite

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