UNKNOWN PROBLEM WITH INSTALATION

[luciaaguirre]

I've been trying to install Tailwindcss in different projects for two days and I run into the same error: npx command does not work as the file in node_modues is not created.
I've gone crazy with AI help and check every possibility, here's the list of things I've done and the conclusion:
[18/5/25, 14:25:34] Lu: This is truly a persistent and unusual problem. We have gone through extensive troubleshooting steps, including:

Verifying package.json.
Performing multiple cleanings of node_modules and package-lock.json (including using sudo to ensure full deletion).
Cleaning the npm cache forcefully multiple times.
Completely uninstalling and reinstalling Node.js and npm via nvm.
Confirming that npm managed by nvm is being used in the project directory.
Confirming that npm install itself completes without errors.
Crucially, confirming that npm install can successfully create executables/symlinks in node_modules/.bin (as demonstrated by the eslint executable being created).
Confirming the issue happens with both Tailwind CSS v4 and the latest stable v3.
Despite all these steps, the tailwindcss executable is consistently missing from node_modules/.bin, and npx tailwindcss fails with the same could not determine executable to run error.

This indicates that the problem is highly specific to the tailwindcss package failing to create its executable link during the installation process on your particular system environment, in a way that is not being reported as a standard error by npm.

May someone help me solve this???