Fix fatal error on Varbase Workflow settings form after Drupal 11.2.0

After updating to Drupal 11.2.0, a fatal error occurs on the Varbase Workflow settings page:

/admin/config/varbase/varbase-workflow

This is caused by a backward-incompatible change in the constructor of Drupal\Core\Form\ConfigFormBase, which now requires a RequestStack service as the second parameter. The current implementation in VarbaseWorkflowSettingsForm only injects the ConfigFactoryInterface.

Error:

ArgumentCountError: Too few arguments to function Drupal\Core\Form\ConfigFormBase::__construct(), 
1 passed in ... and exactly 2 expected in ConfigFormBase.php on line 44.

Steps to reproduce

Given I am logged in with the “webmaster” user
When I navigate to "/admin/config/varbase/varbase-workflow"
Then I hit a fatal error

The website encountered an unexpected error. Try again later.

ArgumentCountError: Too few arguments to function Drupal\Core\Form\ConfigFormBase::__construct(), 1 passed in /app/docroot/modules/contrib/varbase_workflow/src/Form/VarbaseWorkflowSettingsForm.php on line 64 and exactly 2 expected in Drupal\Core\Form\ConfigFormBase->__construct() (line 44 of core/lib/Drupal/Core/Form/ConfigFormBase.php).
Drupal\varbase_workflow\Form\VarbaseWorkflowSettingsForm->__construct(Object, Object, Object, Object, Object) (Line: 75)
Drupal\varbase_workflow\Form\VarbaseWorkflowSettingsForm::create(Object) (Line: 36)
Drupal\Core\DependencyInjection\ClassResolver->getInstanceFromDefinition('\Drupal\varbase_workflow\Form\VarbaseWorkflowSettingsForm') (Line: 48)
Drupal\Core\Controller\HtmlFormController->getFormObject(Object, '\Drupal\varbase_workflow\Form\VarbaseWorkflowSettingsForm') (Line: 58)
Drupal\Core\Controller\FormController->getContentResult(Object, Object)
call_user_func_array(Array, Array) (Line: 123)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 622)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 121)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array) (Line: 97)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 183)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 76)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 54)
Drupal\simple_oauth\HttpMiddleware\BasicAuthSwap->handle(Object, 1, 1) (Line: 53)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 28)
Drupal\Core\StackMiddleware\ContentLength->handle(Object, 1, 1) (Line: 32)
Drupal\big_pipe\StackMiddleware\ContentLength->handle(Object, 1, 1) (Line: 116)
Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1) (Line: 90)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 53)
Asm89\Stack\Cors->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 53)
Drupal\Core\StackMiddleware\AjaxPageState->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel->handle(Object, 1, 1) (Line: 715)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)

Proposed resolution

• Update the constructor of VarbaseWorkflowSettingsForm to inject all needed dependencies and call the parent constructor properly.
• Drupal Standard and Practice

Remaining tasks

• ✅ File an issue about this project
• ✅ Addition/Change/Update/Fix to this project
• ✅ Testing to ensure no regression
• ➖ Automated unit/functional testing coverage
• ➖ Developer Documentation support on feature change/addition
• ➖ User Guide Documentation support on feature change/addition
• ➖ UX/UI designer responsibilities
• ➖ Accessibility and Readability
• ✅ Code review from 1 Varbase core team member
• ✅ Full testing and approval
• ✅ Credit contributors
• ✅ Review with the product owner
• ✅ Update Release Notes and Update Helper on new feature change/addition
• ❌ Release varbase-10.1.0-alpha3, varbase_workflow-3.1.0-beta1

Varbase update type

• ✅ No Update
• ➖ Optional Update
• ➖ Forced Update
• ➖ Forced Update if Unchanged

User interface changes

• N/A

API changes

• N/A

Data model changes

• N/A

Release notes snippet

• Issue #3540283: Fixed fatal error on Varbase Workflow settings form after Drupal 11.2.0