Upgrading Drupal

I am sitting on a clean 8.9.19 site with all current contributing modules. In my wildest dreams did I think that a core theme would be the roadblock to upgrading to Drupal 9.

The site uses Bartik 8.9.19 with a sub-theme and much to my surprise Drupal 9 doesn't like it. The ironic thing is I can't install a version from a Drupal 9 package because it is not backwards compatible. So what do you do? Won't upgrade with the old and can't install a new version.

NHello all

I just upgrade Drupal 8.9.16 to the latest version 9.2.6, in local dev

In one of my Webform, I have a customer handler for sending email. In the new Drupal, I could see it in the handler list of that webform. However, click on it, nothing happened as I got 404 when clicked on the "Edit" button. Eg:

https://mysite/admin/structure/webform/manage/my_form/handlers/my_handle... return 404.

Following these steps

Manually Updating Drupal 8 Core

I think I was somewhere around version 8.2.x
I followed these steps to manually to update my core.

This is the most tedious method but also the one which is most thorough. The steps involved in this method are as follows:

I have been trying to upgrade from 8.9.18 to 8.9.19 but I keep getting taken to a fresh installation screen. Even after restoring 8.9.18 from the backups, this continues. I'm at a loss to know how to fix this safely. Any help would be greatly appreciated.

Hello,

I recently tried to upgrade to drupal version from 8.6 to 8.9 via composer. It seems all packages upgraded successfully but i unable to access frontend and can see following error

I have a site which is on Drupal 9 on a server which has php 7.3.29. In the Status report it says that php 7.4.0 is recommended, but not required. But since a recent update, I have the following in vendor/composer/platform.check.php:

if (!(PHP_VERSION_ID >= 70400)) {
$issues[] = 'Your Composer dependencies require a PHP version ">= 7.4.0". You are running ' . PHP_VERSION . '.';
}