Steps to regenerate:

1. Click on 'Extend' administrator menu to get the list of all modules
2. enable Language module
3. click on save
4. The blank page will appear

I checked the logs and found the error as

Uncaught PHP Exception Symfony\\Component\\Routing\\Exception\\RouteNotFoundException: "Route "entity.configurable_language.collection" does not exist." at /drupal/core/lib/Drupal/Core/Routing/RouteProvider.php line 187

CommentFileSizeAuthor
#5 2792293.png237.29 KBheykarthikwithu
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Comments

minakshiPh created an issue. See original summary.

cilefen’s picture

cilefen CreditAttribution: cilefen commented
Related issues: +#2572285: Module enabling and router rebuilding should be done in one transaction
cilefen’s picture

cilefen CreditAttribution: cilefen commented
Title: After enabling the Language module the system shows blank page » RouteNotFoundException after enabling the Language module
heykarthikwithu’s picture

heykarthikwithu
Primary language English
Location Bengaluru 🌍
CreditAttribution: heykarthikwithu as a volunteer and at Srijan | A Material+ Company commented
Assigned: Unassigned » heykarthikwithu
heykarthikwithu’s picture

heykarthikwithu
Primary language English
Location Bengaluru 🌍
CreditAttribution: heykarthikwithu as a volunteer and at Srijan | A Material+ Company commented
Assigned: heykarthikwithu » Unassigned
Status: Active » Needs review
FileSize
2792293.png237.29 KB

Cannot be reproduced, was not getting the blank page.. Check the attached screen shot.

Version: 8.2.x-dev » 8.3.x-dev

Drupal 8.2.6 was released on February 1, 2017 and is the final full bugfix release for the Drupal 8.2.x series. Drupal 8.2.x will not receive any further development aside from critical and security fixes. Sites should prepare to update to 8.3.0 on April 5, 2017. (Drupal 8.3.0-alpha1 is available for testing.)

Bug reports should be targeted against the 8.3.x-dev branch from now on, and new development or disruptive changes should be targeted against the 8.4.x-dev branch. For more information see the Drupal 8 minor version schedule and the Allowed changes during the Drupal 8 release cycle.

sassafrass’s picture

sassafrass CreditAttribution: sassafrass as a volunteer commented

I encountered this issue as well.

O'Briat’s picture

O'Briat CreditAttribution: O'Briat at Capgemini for E.voyageurs Technologies, SNCF commented

Not reproduce on 8.3.x & 8.4.0-dev standard install, the route "entity.configurable_language.collection" => "/admin/config/regional/language" declared into core/modules/language/language.routing. is working as expected.
I also didn't get any errors on logs.

Is there any initial steps missing in the "how to reproduce" ?

Version: 8.3.x-dev » 8.4.x-dev

Drupal 8.3.6 was released on August 2, 2017 and is the final full bugfix release for the Drupal 8.3.x series. Drupal 8.3.x will not receive any further development aside from critical and security fixes. Sites should prepare to update to 8.4.0 on October 4, 2017. (Drupal 8.4.0-alpha1 is available for testing.)

Bug reports should be targeted against the 8.4.x-dev branch from now on, and new development or disruptive changes should be targeted against the 8.5.x-dev branch. For more information see the Drupal 8 minor version schedule and the Allowed changes during the Drupal 8 release cycle.

john.oltman’s picture

john.oltman CreditAttribution: john.oltman commented

Getting same error on a fresh 8.4.0 install in a Drupal VM when doing the following:

drush -y en language locale content_translation config_translation

The error occurs on the install of the core content_translation module.

If I do it in 2 steps then no error:

drush -y en language locale config_translation
drush -y en content_translation

mirom’s picture

mirom CreditAttribution: mirom commented
Status: Needs review » Closed (duplicate)
Related issues: +#2913912: URL generator may have a stale route provider during module installation

This seems to be duplicate with https://www.drupal.org/node/2913912