SharePoint 2010 / MSOCAF - Call to Microsoft.SharePoint.SPItemEventProperties.OpenWeb() on Sharepoint 2010. Use Microsoft.SharePoint.SPItemEventProperties.get_Web Property instead.
If you are using the following code: SPWeb web = properties.OpenWeb(); and are getting the following error: Call to Microsoft.SharePoint.SPItemEventProperties.OpenWeb() on Sharepoint 2010. Use Microsoft.SharePoint.SPItemEventProperties.get_Web Property instead. You will need to update the code to the following, and it should remedy the error: SPWeb web = properties.Web;