asp.net mvc - Either the parameter @objname is ambiguous or the claimed @objtype (COLUMN) is wrong -

asp.net mvc - Either the parameter @objname is ambiguous or the claimed @objtype (COLUMN) is wrong -

why parameter wrong , making list (that not making sense ) have class (using code first)

public class subject { [key] public int subjectid { get; set; } public int parshaid { get; set; } public int? languageid { get; set; } public int writerid { get; set; } public virtual parsha parsha { get; set; } public virtual author writer { get; set; } public virtual language languages { get; set; }

and i'm getting headline error changing list

public virtual list< language> languages { get; set; }

there no error why ?

asp.net-mvc ef-code-first code-first-migrations