Laminas Navigator, A plugin by the name “navigation” was not found in the plugin manager Laminas\View\HelperPluginManager

On my Laminas Site I want to use the Navigatorframework. I followed this Tutorial, but I failed. / – Uncaught Laminas\ServiceManager\Exception\ServiceNotFoundException: A plugin by the name “navigation” was not found in the plugin manager Laminas\View\HelperPluginManager in /var/www/html/vendor/laminas/laminas-servicemanager/src/AbstractPluginManager.php:143 Stack trace: #0 /var/www/html/vendor/laminas/laminas-view/src/Renderer/PhpRenderer.php(375): Laminas\ServiceManager\AbstractPluginManager->get(‘navigation’, NULL) #1 /var/www/html/vendor/laminas/laminas-view/src/Renderer/PhpRenderer.php(393): Laminas\View\Renderer\PhpRenderer->plugin(‘navigation’) #2 /var/www/html/module/Application/view/layout/layout.phtml(18): Laminas\View\Renderer\PhpRenderer->__call(‘navigation’, Array) #3 /var/www/html/vendor/laminas/laminas-view/src/Renderer/PhpRenderer.php(505): include(‘/var/www/htm…’) #4 /var/www/html/vendor/laminas/laminas-view/src/View.php(206):…

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Magento2.2.6 How to create custom api module?

How to create custom api module for category listing and product filter sales order…etc below added custom api module integrate after check it postman result { “message”: “Request does not match any route.” } webapi.xml <?xml version=”1.0″?> <routes xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xsi:noNamespaceSchemaLocation=”urn:magento:module:Magento_Webapi:etc/webapi.xsd”> <route url=”/V1/customer/me” method=”POST”> <service class=”Magenest\Customapi\Api\CustomerGreetingInterface” method=”sayHello”/> <resources> <resource ref=”self”/> </resources> </route> </routes>

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