Shadcn installation error : Error Module not found

[rohitpathak21]

I have been trying to install shadcn ui through the command given on its site : "npx shadcn-ui@latest init" but it's giving me an error : module not found. It's trying to import index.mjs file which is not there in the diff/ libs.
I tried all the recommended fixes like clearing cache, updating node js but none of them worked.
But when I downgraded the diff version from 5.2.0 to 5.0.1, the command worked and Shadcn was installed. So, there seems to be an issue with the diff folder of the version 5.2.0

[ExplodingCabbage]

Hmm. Interesting. The file is there - see https://www.npmjs.com/package/diff/v/5.2.0 and navigate to lib/index.mjs - so I wonder what's going wrong? I do not have a very good understanding of JavaScript module systems and build pipelines, so I am gonna struggle to figure this one out, but I'll try (and maybe learn something). Help is welcome.

[ExplodingCabbage]

I can't reproduce this:

mark@fractal:~$ mkdir test
mark@fractal:~$ cd test
mark@fractal:~/test$ npm init
This utility will walk you through creating a package.json file.
It only covers the most common items, and tries to guess sensible defaults.

See `npm help init` for definitive documentation on these fields
and exactly what they do.

Use `npm install <pkg>` afterwards to install a package and
save it as a dependency in the package.json file.

Press ^C at any time to quit.
package name: (test) 
version: (1.0.0) 
description: 
entry point: (index.js) 
test command: 
git repository: 
keywords: 
author: 
license: (ISC) 
About to write to /home/mark/test/package.json:

{
  "name": "test",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC"
}


Is this OK? (yes) 
mark@fractal:~/test$ npm install diff

added 1 package, and audited 2 packages in 469ms

found 0 vulnerabilities
mark@fractal:~/test$ npx shadcn-ui init
Need to install the following packages:
shadcn-ui@0.8.0
Ok to proceed? (y) y
file:///home/mark/.npm/_npx/74755fd285ad77f7/node_modules/shadcn-ui/dist/index.js:3
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Visit https://tailwindcss.com/docs/installation to get started.");return!0}var je=`import { type ClassValue, clsx } from "clsx"
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

Error: Tailwind CSS is not installed. Visit https://tailwindcss.com/docs/installation to get started.
    at $e (file:///home/mark/.npm/_npx/74755fd285ad77f7/node_modules/shadcn-ui/dist/index.js:3:7112)

Node.js v20.11.1
mark@fractal:~/test$ npm install -D tailwindcss

added 112 packages, and audited 114 packages in 860ms

29 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities
mark@fractal:~/test$ npx tailwindcss init

Created Tailwind CSS config file: tailwind.config.js
mark@fractal:~/test$ npx shadcn-ui init
✔ Would you like to use TypeScript (recommended)? … no / yes
✔ Which style would you like to use? › Default
✔ Which color would you like to use as base color? › Slate
✔ Where is your global CSS file? … app/globals.css
✔ Would you like to use CSS variables for colors? … no / yes
✔ Are you using a custom tailwind prefix eg. tw-? (Leave blank if not) … 
✔ Where is your tailwind.config.js located? … tailwind.config.js
✔ Configure the import alias for components: … @/components
✔ Configure the import alias for utils: … @/lib/utils
✔ Are you using React Server Components? … no / yes
✔ Write configuration to components.json. Proceed? … yes

✔ Writing components.json...
Failed to load jsconfig.json. Couldn't find tsconfig.json
mark@fractal:~/test$ cat package.json 
{
  "name": "test",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "diff": "^5.2.0"
  },
  "devDependencies": {
    "tailwindcss": "^3.4.3"
  }
}

Not sure what I can do without instructions on how to repro this in a fresh project.