Getting error Class Magento\Authorization\Model\Acl\Role\GroupFactory does not exist

Magento 2 is quite complex to understand. We frequently get this error while developing the store. Here is the solution to fix this error.

1) go to the var folder and find generation. now remove the folder.

2) Now run below code using the command line

php bin/magento setup:di:compile

It will automatically create all folder in the generation folder.

3) Then clear cache using below code:

php bin/magento cache:flush

Now, Run your store it will run without error.