Uninstall issue

[WaPoNe]

I've installed the extension on my Magento instance.
Now, I'm trying to uninstall it (php bin/magento module:uninstall Voronoy_BashCompletion) but I receive this error message:

Voronoy_BashCompletion is not an installed composer package

I note you're using two different vendorName:
Voronoy_BashCompletion as Magento extension;
yvoronoy/magento2-bash-completion as composer package.

This could be the problem.

If I execute directly composer remove yvoronoy/magento2-bash-completion, the package is uninstalled correctly for composer but not for Magento (check app/etc/config.php file).

[yvoronoy]

Michele, thank you for reporting. I'll check it soon