Hello,
I am still facing this issue. Please find the below error.
Drupal Version: 10.2.4
php version: 8.1
sample url: /admin/config/workflow/workbench-email-template/back_to_draft/edit?destination=/admin/config/workflow/workbench-email-template
Happening to all the workbench email templates cannot edit any email templates.
Symfony\Component\Routing\Exception\RouteNotFoundException: Route "entity.workbench_email_template.canonical" does not exist. in Drupal\Core\Routing\RouteProvider->getRouteByName() (line 206 of core/lib/Drupal/Core/Routing/RouteProvider.php).
Drupal\Core\Routing\UrlGenerator->getRoute() (Line: 276)
Drupal\Core\Routing\UrlGenerator->generateFromRoute() (Line: 108)
Drupal\Core\Render\MetadataBubblingUrlGenerator->generateFromRoute() (Line: 765)
Drupal\Core\Url->toString() (Line: 109)
Drupal\responsive_preview\ResponsivePreview->getPreviewUrl() (Line: 327)
Drupal\responsive_preview\ResponsivePreview->previewToolbar() (Line: 33)
responsive_preview_toolbar()
call_user_func_array() (Line: 409)
Drupal\Core\Extension\ModuleHandler->Drupal\Core\Extension\{closure}() (Line: 388)
Drupal\Core\Extension\ModuleHandler->invokeAllWith() (Line: 416)
Drupal\Core\Extension\ModuleHandler->invokeAll() (Line: 78)
Drupal\toolbar\Element\Toolbar::preRenderToolbar()
call_user_func_array() (Line: 111)
Drupal\Core\Render\Renderer->doTrustedCallback() (Line: 859)
Drupal\Core\Render\Renderer->doCallback() (Line: 421)
Drupal\Core\Render\Renderer->doRender() (Line: 493)
Drupal\Core\Render\Renderer->doRender() (Line: 240)
Drupal\Core\Render\Renderer->render() (Line: 475)
Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 82)
__TwigTemplate_ee67f60598dec9fac46dc3f522a0154b->doDisplay() (Line: 394)
Twig\Template->displayWithErrorHandling() (Line: 367)
Twig\Template->display() (Line: 379)
Twig\Template->render() (Line: 38)
Twig\TemplateWrapper->render() (Line: 39)
twig_render_template() (Line: 348)
Drupal\Core\Theme\ThemeManager->render() (Line: 480)
Drupal\Core\Render\Renderer->doRender() (Line: 240)
Drupal\Core\Render\Renderer->render() (Line: 158)
Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 627)
Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 159)
Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse() (Line: 90)
Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray()
call_user_func() (Line: 111)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch() (Line: 186)
Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76)
Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 58)
Drupal\Core\StackMiddleware\Session->handle() (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 270)
Drupal\shield\ShieldMiddleware->bypass() (Line: 226)
Drupal\shield\ShieldMiddleware->handle() (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36)
Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 49)
Drupal\remove_http_headers\StackMiddleware\RemoveHttpHeadersMiddleware->handle() (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 704)
Drupal\Core\DrupalKernel->handle() (Line: 19)