Internal Server Error (500) estimate-shipping-methods

Question

Im using Magento 2 with Vagrant and I made a custom theme. Everything works fine except When I add a product to cart and go to Shipping (1st step in checkout) the page loads but when Shipping method tries to load I get error:

POST http://shop.local/rest/default/V1/guest-carts/ea67f279a751134f7cc2082409178ac7/estimate-shipping-methods 500 (Internal Server Error)

And in response I get:

"message": "Each getter must have description with @return annotation. See Magento\\Quote\\Api\\Data\\AddressInterface::getStreet()",
"trace": "
    #0 /var/www/shop/vendor/magento/framework/Webapi/ServiceInputProcessor.php(161): Magento\\Framework\\Reflection\\TypeProcessor->getGetterReturnType(Object(Zend\\Code\\Reflection\\MethodReflection))\n
    #1 /var/www/shop/vendor/magento/framework/Webapi/ServiceInputProcessor.php(322): Magento\\Framework\\Webapi\\ServiceInputProcessor->_createFromArray('Magento\\\\Quote\\\\A...', Array)\n
    #2 /var/www/shop/vendor/magento/framework/Webapi/ServiceInputProcessor.php(119): Magento\\Framework\\Webapi\\ServiceInputProcessor->convertValue(Array, 'Magento\\\\Quote\\\\A...')\n
    #3 /var/www/shop/vendor/magento/module-webapi/Controller/Rest/InputParamsResolver.php(101): Magento\\Framework\\Webapi\\ServiceInputProcessor->process('Magento\\\\Quote\\\\A...', 'estimateByExten...', Array)\n
    #4 /var/www/shop/vendor/magento/module-webapi/Controller/Rest.php(299): Magento\\Webapi\\Controller\\Rest\\InputParamsResolver->resolve()\n
    #5 /var/www/shop/vendor/magento/module-webapi/Controller/Rest.php(216): Magento\\Webapi\\Controller\\Rest->processApiRequest()\n
    #6 /var/www/shop/var/generation/Magento/Webapi/Controller/Rest/Interceptor.php(24): Magento\\Webapi\\Controller\\Rest->dispatch(Object(Magento\\Framework\\App\\Request\\Http))\n
    #7 /var/www/shop/vendor/magento/framework/App/Http.php(135): Magento\\Webapi\\Controller\\Rest\\Interceptor->dispatch(Object(Magento\\Framework\\App\\Request\\Http))\n
    #8 /var/www/shop/vendor/magento/framework/App/Bootstrap.php(258): Magento\\Framework\\App\\Http->launch()\n
    #9 /var/www/shop/index.php(39): Magento\\Framework\\App\\Bootstrap->run(Object(Magento\\Framework\\App\\Http))\n
    #10 {main}" 

NOTE: Sometimes it is AddressInterface::getRegionId()

I went to check the annotations and they are there. I tried to google this problem and found out that Zend Opcache can cause this problem but I already had it disabled. I have PHP version 7.0.6

I also tried to remove Shipping methods same thing (using only Free shipping, rest are disabled).

What else could it be? What am I missing?

Answer 1

I have made it work not sure how that worked but ok.

So i tried every little thing i could think of so i went to conf.d/ folder inside my php etc/php/7.0/cli and there i saw file 10-opcache.ini and inside there was a line

zend_extention=opcache.so

So i have commented it with ; in front, Restarted my computer and it worked for some reason. Which is confusing as php info was showing that opcache is disabled (maybe it was loading something more from this?)

To add i am using PHP 7.0.6 with Vagrant so this might be different to others.