After updating my Drupal 8 test site from 8.3.7 to 8.4.0, I got these error messages:

Mismatched entity and/or field definitions
The following changes were detected in the entity type and field definitions.

Webform submission

  • The Sprache field needs to be updated.


  • The Veröffentlicht field needs to be updated.
  • The Behavior settings field needs to be updated.

What do I have to do? I don't know how and where I should update these fields. Should I update any database table, or is there another workaround?

1 Answer 1


Try on terminal this command

drush entity-updates

Or if you have Devel module installed, you can also use the "Execute PHP Code" page at http;//example.com/devel/php

try {
catch (EntityStorageException $e) {

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