Unable to Serialize Value Magento 2.2.6

Question

On my site at http://139.59.47.100/ ,anyother url(http://139.59.47.100/daily-deals) except the home page is coming fine but for the homepage,i am getting the error "unable to serialize value".I have tried several fixes available for this like clearing the cache,recompiling,re deploying static assets etc.

Below is the exact error message.

{"0":"Unable to serialize value.","1":"#0 /var/www/html/vendor/magento/framework/App/PageCache/Kernel.php(153): Magento\Framework\Serialize\Serializer\Json->serialize(Array)\n#1 /var/www/html/vendor/magento/module-page-cache/Model/Controller/Result/BuiltinPlugin.php(96): Magento\Framework\App\PageCache\Kernel->process(Object(Magento\Framework\App\Response\Http\Interceptor))\n#2 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(146): Magento\PageCache\Model\Controller\Result\BuiltinPlugin->afterRenderResult(Object(Magento\Framework\View\Result\Page\Interceptor), Object(Magento\Framework\View\Result\Page\Interceptor), Object(Magento\Framework\App\Response\Http\Interceptor))\n#3 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\View\Result\Page\Interceptor->Magento\Framework\Interception\{closure}(Object(Magento\Framework\App\Response\Http\Interceptor))\n#4 /var/www/html/generated/code/Magento/Framework/View/Result/Page/Interceptor.php(130): Magento\Framework\View\Result\Page\Interceptor->___callPlugins('renderResult', Array, Array)\n#5 /var/www/html/vendor/magento/framework/App/Http.php(139): Magento\Framework\View\Result\Page\Interceptor->renderResult(Object(Magento\Framework\App\Response\Http\Interceptor))\n#6 /var/www/html/generated/code/Magento/Framework/App/Http/Interceptor.php(24): Magento\Framework\App\Http->launch()\n#7 /var/www/html/vendor/magento/framework/App/Bootstrap.php(257): Magento\Framework\App\Http\Interceptor->launch()\n#8 /var/www/html/index.php(39): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http\Interceptor))\n#9 {main}","url":"/","script_name":"/index.php"}

• Philipp Sander: did you check why the value can't be serialized? Unfourtunatly magento2 won't tell you the exact problem why the value can't be serialized, but you can modify the code for dbugging purposes in order to print the json error

Answer 1

I have encountered this. To get around it, I used this solution: https://magento.stackexchange.com/a/198109/69191

Other solutions are resetting permissions and flushing your Magento caches, including things like memcache and Redis.

• Dhruv Marwha: I will try this and let you know.I have tried changing permissions and also flushing the default magento caches.
• Dhruv Marwha: Tried that solution but it did not work.Anything else that i can try?