An invalid abstract factory was registered. Expected an instance of or a valid class name resolving to an implementation o

Questions Components & MVC
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1

Hi,
please suggest solution for below error.


Fatal error : Uncaught Laminas\ServiceManager\Exception\InvalidArgumentException: An invalid abstract factory was registered. Expected an instance of or a valid class name resolving to an implementation of "Laminas\ServiceManager\AbstractFactoryInterface ", but "string "was received. in /unity/unity_applications/unity/vendor/laminas/laminas-servicemanager/src/Exception/InvalidArgumentException.php:32 Stack trace: #0 /unity/unity_applications/unity/vendor/laminas/laminas-servicemanager/src/ServiceManager.php(940): Laminas\ServiceManager\Exception\InvalidArgumentException::fromInvalidAbstractFactory('Laminas\\Cache\\S...') #1 /unity/unity_applications/unity/vendor/laminas/laminas-servicemanager/src/ServiceManager.php(381): Laminas\ServiceManager\ServiceManager->resolveAbstractFactoryInstance('Laminas\\Cache\\S...') #2 /unity/unity_applications/unity/vendor/laminas/laminas-servicemanager/src/Config.php(82): Laminas\ServiceManager\ServiceManager->configure(Array) #3 /unity/unity_applications/unity/vendor/laminas/laminas-modulemanager/src/Listener/ServiceListener.php(211): Laminas\ServiceManager\Config->configureServiceManager(Object(Laminas\ServiceManager\ServiceManager)) #4 /unity/unity_applications/unity/vendor/laminas/laminas-eventmanager/src/EventManager.php(319): Laminas\ModuleManager\Listener\ServiceListener->onLoadModulesPost(Object(Laminas\ModuleManager\ModuleEvent)) #5 /unity/unity_applications/unity/vendor/laminas/laminas-eventmanager/src/EventManager.php(169): Laminas\EventManager\EventManager->triggerListeners(Object(Laminas\ModuleManager\ModuleEvent)) #6 /unity/unity_applications/unity/vendor/laminas/laminas-modulemanager/src/ModuleManager.php(108): Laminas\EventManager\EventManager->triggerEvent(Object(Laminas\ModuleManager\ModuleEvent)) #7 /unity/unity_applications/unity/vendor/laminas/laminas-mvc/src/Application.php(251): Laminas\ModuleManager\ModuleManager->loadModules() #8 /unity/unity_applications/unity/initializer.php(528): Laminas\Mvc\Application::init(Array) #9 /unity/unity_applications/unity/initializer.php(386): Unity\Initializer->getApplication() #10 /unity/unity_applications/unity/initializer.php(334): Unity\Initializer->getErrorHandler() #11 /unity/unity_applications/unity/web_root/index.php(8): Unity\Initializer->run() #12 {main} thrown in /unity/unity_applications/unity/vendor/laminas/laminas-servicemanager/src/Exception/InvalidArgumentException.php on line 32
2

Hello and welcome to our forums! :smiley:

laminas-cache is listed in the error message.

Please search in your application for abstract_factories and check the entries. And activate the development mode to disable the caching of configuration files because this can also contain invalid entries.