Hi!
As requested this is a duplicate of
https://www.joomlart.com/forums/d/39228-t4-blank-template-bs5-v-2-1-0-causing-error
Version 1.1.3 of Bootstrap 5 blank template together with version 2.1.0 of the T4 framework causes an error 500, e.g. in the Events Booking calendar overview (but also other extensions).
The error happens when Events Booking extension calls this code:
HTMLHelper::_('bootstrap.framework');
The error message is
Error: Call to undefined method T4\Helper\Asset::AssetManager(): Call to undefined method T4\Helper\Asset::AssetManager()
The call stack is:
1 () JROOT/plugins/system/t4/src/joomla3/cms/html/bootstrap.php:813
2 JHtmlBootstrap::framework()
3 call_user_func_array() JROOT/libraries/src/HTML/HTMLHelper.php:239
4 Joomla\CMS\HTML\HTMLHelper::call() JROOT/libraries/src/HTML/HTMLHelper.php:146
The same error occurs for other extensions as well.
Hint:
/templates/t4_bs5_blank/templateDetails.xml in the new version introduced in line 77 <bootstrap>bs5</bootstrap>
As soon as this line is removed, the error disappears.
Thanks!
Kind regards,
Frank