After Mounting the database on SharePoint 2016, below is an error I'm getting:

Could not load file or assembly 'VDR_Mail_Event_Solution, Version=, Culture=neutral, PublicKeyToken=8f7265d6d3991bc8' or one of its dependencies. The system cannot find the file specified.


Did you have a custom solution/feature related to "VDR_Mail_Event_Solution" on you SharePoint 2013 farm?

If you have deployed custom solutions/features on your SharePoint 2013 farm, to make sure them work on your SharePoint 2016, you need to re-deploy them on your SharePoint 2016 before you mount database on SharePoint 2016 farm.

Or, if you don't continue using these solutions/features, you can remove them on your SharePoint 2013 firstly, then backup your database and mount it on your SharePoint 2016.

| improve this answer | |

Not the answer you're looking for? Browse other questions tagged or ask your own question.