If the product images are missing after an upgrade for example, the following command (executed in the root of your Magento 2 shop) might help: php magento catalog:images:resize Note: Depending on the mumber of products, that might run some time.
Solving the “Required parameter ‘theme_dir’ was not passed” error (Magento 2)
The Required parameter ‘theme_dir’ was not passed is most likely caused by an invalid theme table in your database. Solution: Open the theme table and delete all rows that refer to a theme that does not exist.
Fatal error: Only variables can be passed by reference in search.phtml (Magento 2)
Do you get the Fatal error: Only variables can be passed by reference in vendor/magento/module-backend/view/adminhtml/templates/system/search.phtml error in your Magento 2 store when calling the backend? To fix that issue, simply deactivate asp_tags in your php.ini. After that, the Magento 2…
Magento 2 error: Could not determine temp directory, please specify a cache_dir manually
If you get the Could not determine temp directory, please specify a cache_dir manually error in Magento 2, the shop is not able to access your PHP temporary folder. To solve this problem, simply add sys_temp_dir to your php.ini file…