Error asenumerable' is not a member of 'system.data.datatable'

Error asenumerable' is not a member of 'system.data.datatable' To resolve - add reference to System.Data.DataSetExtensions.dll (Project, Add Reference, Recent)

Error expression of type 'object' is not queryable

Error expression of type 'object' is not queryable - To resolve set option infer to on (right click project, properties, compile)