Should be a similar PR as #37286 before.

@Kostelano Do you think you can make a PR?

I couldnt replicate it as you expected

Installation in russian

Date: June 16, 2022

Author: Brian Teeman

Source: Tango

1. Go to Joomla Installer

2. Click on Параметры сайта…

3. Type "Site Name"

4. Click on Параметры учетной записи

5. Type "My Full Name"

6. Type "admin"

7. Type password

8. Type "admin@example.com"

9. Click on Параметры базы данных

10. Type "joomla_ru"

11. Type "root"

12. Click on Установить Joomla

13. Click on Завершение установки…

14. Click on Установить языковые пакеты

15. Check Russian

16. Click on Далее…

17. Click on Russian (ru-RU) ru-RU

18. Select "ru-RU"

19. Select "ru-RU"

20. Click on Языковые пакеты установлены. Пожалуйста, выберите язык по умолчанию для панели управления и нажмите "Установить по умолчанию".…

21. Click on Открыть панель управления

This workflow was created with Tango

@brianteeman But maybe it could make sense to add the untranslated error messages shown in @Kostelano 's screen shot to the installation/language/en-GB/joomla.ini file regardless of that?

For the COM_ More likely the solution is to add a string INSTL_to the installation and update the php accordingly

For the COM_ More likely the solution is to add a string INSTL_to the installation and update the php accordingly

That's right.

When checking in which PHP files outside of the "administrator/components/com_installer" folder are using language stings like "COM_INSTALLER_", I find:

libraries/src/Console/ExtensionRemoveCommand.php
plugins/installer/packageinstaller/tmpl/default.php
plugins/installer/webinstaller/tmpl/default.php
installation/src/Model/LanguagesModel.php
layouts/joomla/installer/changelog.php

But we have language string with keys like "COM_INSTALLER_" only in the "com_installer" language files of the backend, and that's how it should be.

The "installation/src/Model/LanguagesModel.php" really should not use "COM_INSTALLER_" language strings.

As far as I can see it uses only that one here: https://github.com/joomla/joomla-cms/blob/4.2-dev/installation/src/Model/LanguagesModel.php#L292

So this should be changed to an "INSTL_" sting which should then be added to the "installation/language/en-GB/joomla.ini" file.

The "JLIB_INSTALLER_ERROR_DOWNLOAD_SERVER_CONNECT" should be added to the same file at the right place.

And now the important question: Who wants to make the PR? ?

If nobody else wants to make a PR, I can make one, but I want to avoid us doing duplicate work in parallel, so if someone is already working on it let me know. I'll wait a while.

If nobody else wants to make a PR, I can make one, but I want to avoid us doing duplicate work in parallel, so if someone is already working on it let me know. I'll wait a while.

Sorry, I'm not at home at the PC, so I can't right now.

And I am at the pub

Closing as having a pull request. Please test #38080 , either by code review, or if you can reproduce the error which causes the mentioned strings to be shown, do a real test. Thanks in advance.