Compiled queries in LINQ

Question

using (TestAssessmentEntities context = new TestAssessmentEntities())
{
IQueryable result = MyCompliedQueries.cc(context, scheduleId);
return result;
}


static class MyCompliedQueries
{
public static Func>
cc = CompiledQuery.Compile>((context, scheduleId) => (from sch in context.Schedule
where sch.Id == scheduleId && sch.ScheduleStatus == 2 && sch.DeliveryMode == 1
join tes in context.Test on sch.TestId equals tes.Id
join testsq in context.TestSectionQuestion on sch.TestId equals testsq.TestId

select new QuestionPaper
{

NoOfQestions = tes.NoOfQuestions,
MaxMarks = tes.MaxMarks,
TestSectionList = (from schh in context.Schedule
join testsec in context.TestSection on schh.TestId equals testsec.TestId
select new TestSectionList
{
SectionName = context.TestSection.Where(x => x.TestId == schh.TestId).Select(x => x.Name).ToList(),
Options = (from sc in context.Schedule
join ques in context.Question on testsq.QuestionId equals ques.Id
where ques.Id == testsq.QuestionId
select new Options
{
QuestionText = context.Question.Where(x => x.Id == testsq.QuestionId).Select(x => x.QuestionText).ToList(),
OptionText = context.QuestionOption.Where(x => x.QuestionId == ques.Id).Select(x => x.OptionText).ToList()

}).FirstOrDefault()
}).FirstOrDefault()

})).FirstOrDefault());
}

Displaying error as

 

 

can anyone please suggest me how to fix this issues related to compiled query