I did system upgrade from Magento ver. 2.0.7 to Magento ver. 2.1.6 by admin panel.

I clean the cache but the component manager keeps on loading.

There's an error on my console:

Failed to /setup/index.php/componentGrid/components load resource: the server responded with a status of 500 (Internal Server Error)

How to fix this one?


I have fixed this issue by following below steps:

  • Open /setup/index.php/componentGrid/components in new tab
  • It showed me actual error, in my case it was last extension installed through composer.
  • I have removed that from composer
  • After updating composer, I have to execute following commands as well.
  • bin/magento setup:upgrade
  • bin/magento setup:static-content:deploy


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