Fix Symfony\Component\Routing\Exception\RouteNotFoundException: Route "entity.taxonomy_menu.edit_form" does not exist

instaled taxonomy_menu-8.x-3.0.zip
When saving a taxonomy_menu entity - fatal error.
Symfony\Component\Routing\Exception\RouteNotFoundException: Route "entity.taxonomy_menu.edit_form" does not exist. in Drupal\Core\Routing\RouteProvider->getRouteByName() (line 191 of core/lib/Drupal/Core/Routing/RouteProvider.php).

UPD: repair this bag from patch

I get the same error in 8.x-3.0 on clean drupal installation.

Uncaught PHP Exception Symfony\\Component\\Routing\\Exception\\RouteNotFoundException: "Route "entity.taxonomy_menu.edit_form" does not exist."

It happens when I submit a new taxonomy menu with my custom content type and Main menu selected.

Updating status

@blazey - by "custom content type" you meant "custom vocabulary"? I'll try testing this right now.

Please note: I cannot reproduce this error with the current 8.x-3.x branch. Have you updated to the tip of 8.x-3.x? We will push a new release when we fix https://www.drupal.org/node/2577201

The following steps were used on Drupal 8.0.0 with a custom taxonomy vocabulary and the main navigation menu.

1. Create custom taxonomy vocab
2. Create custom taxonomy terms under vocabulary
3. Create the taxonomy menu
4. Edit and save the taxonomy menu

There is no fatal error generated.

Please update with more accurate steps to reproduce if I am missing something.

Please note - we have a patch prepared for https://www.drupal.org/node/2577201. Once this is reviewed, we will cut a new 8.x-3.x release.

This has been rolled into 8.x-3.1. Marking issue as resolved