IQueryable - Value cannot be null. Parameter name: property

Value cannot be null.

Parameter name: property

I got below error while I called orderby with IQueryable,

Error

Value cannot be null.
Parameter name: property

StackTrace:
.... OrderBy[T](IQueryable`1 query, String memberName, String direction) ....

I searched on many sites but did not get solution, then I start trial and run method on code. Finally I found that it was my silly mistake, 

Solution

SQL column name and what you passing in code should be same, its case sensitive

I was passing : countryName

SQL Column name: CountryName

Hope this will help you and save your time.

Enjoy !!!

:)