Field field_media_image is unknown. in Drupal\Core\Entity\ContentEntityBase->getTranslatedField()

Cannot begin to explain why, but this is also happening repeatedly to us.

Steps to reproduce:

1. Install Drutopia distribution (Can get the code and set up project in DDEV with ddev composer create -y drutopia/drutopia_dev_template:dev-main --no-interaction, then use the web UI to install, select "Everything" at the what to install step.
2. Go to Content types » Action » Manage Fields
3. For field_image select Clone to Media
4, Select Create a new Media Image field
5. Leave the default, field_image_media or change it to field_media_image, doesn't matter

The processing bar won't move, will stay stuck on "Cloning is starting" and the reported error will be in the logs, AH01071: Got error 'PHP message: Uncaught PHP Exception InvalidArgumentException: "Field field_media_image is unknown." at /var/www/html/web/core/lib/Drupal/Core/Entity/ContentEntityBase.php line 583', referer: https://drutopia-dev-site.ddev.site/batch?id=3&op=start

Ah OK the steps to reproduce are much easier— simply fail to have any media types, or i suppose any media image type, and it'll happen.

I don't know at some point i expected it to create the media image for us even though i think i knew at one point that it doesn't.

Creating the media type image would be a cool feature.

But i guess the minor bug report here is that there should be no way to start the processing, or there should be a clear error with explanation thrown.

Creating the media type image would be a cool feature.

Isn't it created by default after installing the "Media" module?

Only if you have Drupal core's standard profile enabled, i believe— the code that does this lives here:

https://git.drupalcode.org/project/drupal/-/tree/10.1.x/core/profiles/st...

(adding that code to Drutopia now, but definitely possible for sites to start off with Minimal or other profiles.)

I added the requirement of creation of the "Image" media type to the "Uses" section on the project's page.

Really impressive, thank you!!