Forum Post: LINQ query error: Trying to join multiple entities using Early Bound

Hi I am trying to join multiple entities but I get and error saying: {"'xrmsm_sessionEnrollments' entity doesn't contain attribute with Name = 'xrmsm_termsid'."}. That is correct but I am joining the entity that have that attribute. What im doing wrong?

My original SQL query that works

SELECT en.xrmsm_currentsessionenrollmentsname

      ,en.xrmsm_isreadonlyname

      ,en.xrmsm_sessionenrollmentsaverage

      ,en.xrmsm_sessionenrollmentsgrade

      ,en.xrmsm_sessionenrollmentsid

      ,en.xrmsm_sessionenrollments_id

      ,en.xrmsm_sessionlookup as sessionid

      ,en.xrmsm_sessionlookupname

      ,en.xrmsm_sessionsname

      ,en.xrmsm_studentlookup AS studentid

      ,en.xrmsm_studentlookupname

      ,en.xrmsm_studentsname

      ,en.xrmsm_termsessionlookup

      ,en.xrmsm_termsessionlookupname

      ,en.xrmsm_withdrawal

      ,en.xrmsm_yearaverage

      ,en.xrmsm_yeargrade

      ,en.xrmsm_yearlookup

      ,en.xrmsm_yearlookupname

  FROM CoseyTest_MSCRM.dbo.Filteredxrmsm_sessionEnrollments as en INNER JOIN

  CoseyTest_MSCRM.dbo.Filteredxrmsm_sessions crmsessions ON

  (en.xrmsm_sessionlookup = crmsessions.xrmsm_sessionsid AND en.xrmsm_yearlookup = crmsessions.xrmsm_yearlookup)

  INNER JOIN Filteredxrmsm_institutionCourses institutionCourses

  on crmsessions.xrmsm_institutioncourselookup = institutionCourses.xrmsm_institutioncoursesid

  Inner Join Filteredxrmsm_term_sessions as termsession

  on en.xrmsm_termsessionlookup = termsession.xrmsm_term_sessionsid

  Inner Join Filteredxrmsm_terms as terms

  on termsession.xrmsm_termlookup = terms.xrmsm_termsid

  where en.xrmsm_yearlookup = '4BA07BED-3F51-E211-8359-00155D004403'

  and en.xrmsm_studentlookup = 'C844AF65-5B51-E211-8359-00155D004403'

  and terms.xrmsm_termsid = 'D1D107B7-4551-E211-8359-00155D004403'

  and institutionCourses.xrmsm_institutioncoursesid = '2121914E-4551-E211-8359-00155D004403'

My LINQ query looks like this

var query2 = from e in svsContext.xrmsm_sessionEnrollmentsSet

                         join s in svsContext.xrmsm_sessionsSet on e.xrmsm_SessionLookup.Id equals s.xrmsm_sessionsId

                         join ic in svsContext.xrmsm_institutionCoursesSet on s.xrmsm_institutionCourseLookup.Id equals ic.xrmsm_institutionCoursesId

                         join ts in svsContext.xrmsm_term_sessionsSet on e.xrmsm_termSessionLookup.Id equals ts.xrmsm_term_sessionsId

                         join t in svsContext.xrmsm_termsSet on ts.xrmsm_TermLookup.Id equals t.xrmsm_termsId

                         where (e.xrmsm_StudentLookup.Equals(studentlookup)

                         && e.xrmsm_YearLookup.Equals(entity.GetAttributeValue<EntityReference>("xrmsm_studentlookup"))

                         && ic.xrmsm_institutionCoursesId == institutionCourseGuid

                         && t.xrmsm_termsId == termGuid)

                         select new { sessionName = s.xrmsm_sessionsName, StudentName = e.xrmsm_studentsName, StudentId = e.xrmsm_StudentLookup.Name };