Error in Script Task

Dear Team,

                    Here I wrote a code in script task in business process I.e.,

                    Select selectqry = new Terrasoft.Core.DB.Select(userConnection)

                   .Column("UsrHrStatusId")

                   .Column("Usrcandresponse")

                   .Column("UsrCandidateNameId")

                   .From("UsrInterview")

                   .Where("UsrIndentLocationId").IsEqual(Column.Parameter(LocationId)) as Select;        

                   I am getting the below error:          

                   How to solve this error?PFA.