`'update-po' is not a registered subcommand of 'i18n'.` about i18n-command HOT 3 CLOSED

This doesn't sound like you're using the latest version of this package. At least I cannot reproduce the issue locally.

What's the output of wp package list? What's the output of wp i18n?

I installed the latest version of the package using wp package install wp-cli/i18n-command:dev-main and then I get this:

$ wp package list
+------------------------------------+------------------+----------+-----------+----------------+
| name                               | authors          | version  | update    | update_version |
+------------------------------------+------------------+----------+-----------+----------------+
| swissspidy/validate-readme-command |                  | dev-main | none      |                |
| wp-cli/dist-archive-command        | Daniel Bachhuber | v2.0.1   | none      |                |
| wp-cli/i18n-command                | Pascal Birchler  | dev-main | available | 2.x-dev        |
| wp-cli/scaffold-package-command    | Daniel Bachhuber | v2.0.1   | none      |                |
+------------------------------------+------------------+----------+-----------+----------------+

$ wp i18n update-po
usage: wp i18n update-po <source> [<destination>]

So it works as expected.

from i18n-command.

@swissspidy: Yes, I can confirm that installing the latest wp i18n as you described (wp package install) works correctly.

What I did first (and which didn't work):

1. (cd ~/src)
2. git clone https://github.com/wp-cli/i18n-command
3. (cd i18n-command)
4. composer install
5. ~/src/i18n-command/vendor/bin/wp i18n update-po

After install the latest wp i18n using wp package install the issue also went away.
So my approach for using wp i18n directly from GitHub repository appears to be wrong.

from i18n-command.

@swissspidy check this

It says

"This package is included with WP-CLI itself, no additional installation necessary."

Check this issue please: #340

from i18n-command.