When try to create a site collection, got the below error message in the SharePoint 2013 farm.
“Sorry, something went wrong .One or more types failed to load. Please refer to the upgrade log for more details”
And then found the below exact reason for the above error message in the SharePoint log files
ERROR Exception: Could not load file or assembly 'Microsoft.Data.Edm
Exception: Could not load file or assembly 'Microsoft.Data.OData
To fix this issue, download and install WCF Data Services 5.0 for OData V3 in the SharePoint Server
Download Link: http://www.microsoft.com/en-us/download/details.aspx?id=29306
