file permissions – “[ErrorException] chmod(): Operation not permitted” running “composer update”

I’m running Magento 2.4.2 and I’m using Composer v2.0.11. 2 days ago, after running, as usual, composer update, I suddenly received this error:

chmod(): Operation not permitted

You can see composer update -v output down below:

enter image description here

What I tried

  • I tried to apply chmod -R 777 . and chown -R www-data:www-data .
  • I tried to apply chmod u+x bin/magento

Any ideas?