Had issues updating our install on previous hosting, but I kept putting it off. We just migrated to Azure, and I was able to update from v8 up to v10.1 but got this error on the update page when trying to update again. I don't know where to start with it.

Error Loading Block: Rock Update Show Details

c:\inetpub\wwwroot\Blocks\Core\RockUpdate.ascx.cs(179): error CS0103: The name 'nbSqlServerVersionIssue' does not exist in the current context

Checked my logs and we have this same message popping up over and over.

System.NullReferenceException,"Object reference not set to an instance of an object."," at Rock.Model.ServiceJobService.BuildQuartzJob(ServiceJob job)

   at RockWeb.Global.Application_Start(Object sender, EventArgs e)"

[Edit: This error was related to a plugin from the Rockshop that hadn't been installed on the new system.]

I've asked around in chat and haven't gotten any responses.