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Symfony\Component\Routing\Exception\InvalidParameterException: Parameter "webform_handler" for route "entity.webform.handler.delete_form" must match "[^/]++" ("" given) to generate a corresponding URL. in Drupal\Core\Routing\UrlGenerator->doGenerate()

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Created on 5 May 2022, about 2 years ago
Updated 21 March 2023, over 1 year ago

Symfony\Component\Routing\Exception\InvalidParameterException: Parameter "webform_handler" for route "entity.webform.handler.delete_form" must match "[^/]++" ("" given) to generate a corresponding URL. in Drupal\Core\Routing\UrlGenerator->doGenerate()

i was drupal 8 site but now i have upgrade it to drupal 9.3.12 then i found the above issue in wbform copper handler at - https://my_site.com/admin/structure/webform/manage/my_webform/handlers/copper/edit

🐛 Bug report
Status

Fixed

Version

1.0

Component

Code

Created by

🇮🇳India Kumar Rakesh

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