ReflectionException: Class "Flekto\Postcode\Helper\Magento\Framework\App\ProductMetadataInterface"

[jvkranenburg]

Hi, we have installed the latest version of this extension by Composer.

After installing we ran:

bin/magento set:up && bin/magento s:d:c && bin/magento s:s:d -f nl_NL en_GB en_US --jobs=8 && bin/magento cache:cl && bin/magento cache:fl

And we get a "ReflectionException: Class "Flekto\Postcode\Helper\Magento\Framework\App\ProductMetadataInterface"".

On frontend everything is visible (OneStepCheckout.com integrated) but trying to find an address shows:

In the exception.log file the log below is written. Does anyone know what I'm doing wrong?

[2023-06-10T21:16:11.677044+00:00] main.CRITICAL: ReflectionException: Class "Flekto\Postcode\Helper\Magento\Framework\App\ProductMetadataInterface" does not exist in /home/xyx.nl/public_html/vendor/magento/framework/Code/Reader/ClassReader.php:34
Stack trace:
#0 /home/xyx.nl/public_html/vendor/magento/framework/Code/Reader/ClassReader.php(34): ReflectionClass->__construct()
#1 /home/xyx.nl/public_html/vendor/magento/framework/ObjectManager/Definition/Runtime.php(54): Magento\Framework\Code\Reader\ClassReader->getConstructor()
#2 /home/xyx.nl/public_html/vendor/magento/framework/ObjectManager/Factory/Compiled.php(100): Magento\Framework\ObjectManager\Definition\Runtime->getParameters()
#3 /home/xyx.nl/public_html/vendor/magento/framework/ObjectManager/ObjectManager.php(70): Magento\Framework\ObjectManager\Factory\Compiled->create()
#4 /home/xyx.nl/public_html/vendor/postcode-nl/api-magento2-module/Helper/ApiClientHelper.php(463): Magento\Framework\ObjectManager\ObjectManager->get()
#5 /home/xyx.nl/public_html/vendor/postcode-nl/api-magento2-module/Helper/ApiClientHelper.php(273): Flekto\Postcode\Helper\ApiClientHelper->_getDebugInfo()
#6 /home/xyx.nl/public_html/vendor/postcode-nl/api-magento2-module/Helper/ApiClientHelper.php(205): Flekto\Postcode\Helper\ApiClientHelper->_handleClientException()
#7 /home/xyx.nl/public_html/vendor/postcode-nl/api-magento2-module/Model/PostcodeModel.php(62): Flekto\Postcode\Helper\ApiClientHelper->getNlAddress()
#8 [internal function]: Flekto\Postcode\Model\PostcodeModel->getNlAddress()
#9 /home/xyx.nl/public_html/vendor/magento/module-webapi/Controller/Rest/SynchronousRequestProcessor.php(95): call_user_func_array()
#10 /home/xyx.nl/public_html/vendor/magento/module-webapi/Controller/Rest.php(202): Magento\Webapi\Controller\Rest\SynchronousRequestProcessor->process()
#11 /home/xyx.nl/public_html/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Webapi\Controller\Rest->dispatch()
#12 /home/xyx.nl/public_html/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Webapi\Controller\Rest\Interceptor->___callParent()
#13 /home/xyx.nl/public_html/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Webapi\Controller\Rest\Interceptor->Magento\Framework\Interception\{closure}()
#14 /home/xyx.nl/public_html/generated/code/Magento/Webapi/Controller/Rest/Interceptor.php(23): Magento\Webapi\Controller\Rest\Interceptor->___callPlugins()
#15 /home/xyx.nl/public_html/vendor/magento/framework/App/Http.php(116): Magento\Webapi\Controller\Rest\Interceptor->dispatch()
#16 /home/xyx.nl/public_html/generated/code/Magento/Framework/App/Http/Interceptor.php(23): Magento\Framework\App\Http->launch()
#17 /home/xyx.nl/public_html/vendor/magento/framework/App/Bootstrap.php(264): Magento\Framework\App\Http\Interceptor->launch()
#18 /home/xyx.nl/public_html/pub/index.php(43): Magento\Framework\App\Bootstrap->run()
#19 {main}

Next Exception: Report ID: webapi-6484e81ba5290; Message: Class "Flekto\Postcode\Helper\Magento\Framework\App\ProductMetadataInterface" does not exist in /home/xyx.nl/public_html/vendor/magento/framework/Webapi/ErrorProcessor.php:208
Stack trace:
#0 /home/xyx.nl/public_html/vendor/magento/framework/Webapi/ErrorProcessor.php(153): Magento\Framework\Webapi\ErrorProcessor->_critical()
#1 /home/xyx.nl/public_html/vendor/magento/module-webapi/Controller/Rest.php(208): Magento\Framework\Webapi\ErrorProcessor->maskException()
#2 /home/xyx.nl/public_html/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Webapi\Controller\Rest->dispatch()
#3 /home/xyx.nl/public_html/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Webapi\Controller\Rest\Interceptor->___callParent()
#4 /home/xyx.nl/public_html/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Webapi\Controller\Rest\Interceptor->Magento\Framework\Interception\{closure}()
#5 /home/xyx.nl/public_html/generated/code/Magento/Webapi/Controller/Rest/Interceptor.php(23): Magento\Webapi\Controller\Rest\Interceptor->___callPlugins()
#6 /home/xyx.nl/public_html/vendor/magento/framework/App/Http.php(116): Magento\Webapi\Controller\Rest\Interceptor->dispatch()
#7 /home/xyx.nl/public_html/generated/code/Magento/Framework/App/Http/Interceptor.php(23): Magento\Framework\App\Http->launch()
#8 /home/xyx.nl/public_html/vendor/magento/framework/App/Bootstrap.php(264): Magento\Framework\App\Http\Interceptor->launch()
#9 /home/xyx.nl/public_html/pub/index.php(43): Magento\Framework\App\Bootstrap->run()
#10 {main} {"exception":"[object] (Exception(code: -1): Report ID: webapi-6484e81ba5290; Message: Class \"Flekto\\Postcode\\Helper\\Magento\\Framework\\App\\ProductMetadataInterface\" does not exist at /home/xyx.nl/public_html/vendor/magento/framework/Webapi/ErrorProcessor.php:208)
[previous exception] [object] (ReflectionException(code: -1): Class \"Flekto\\Postcode\\Helper\\Magento\\Framework\\App\\ProductMetadataInterface\" does not exist at /home/xyx.nl/public_html/vendor/magento/framework/Code/Reader/ClassReader.php:34)"} []

[JSeverein]

We had the same. It appears to be caused by a missing \ here: https://github.com/postcode-nl/PostcodeNl_Api_Magento2/blob/master/Helper/ApiClientHelper.php#LL463C28-L463C28

A workaround is to turn off debug mode in the admin.

[jvkranenburg]

Thx Jeroen! That's it! Switched off Debug mode for now ;-)