expected context variable and dot, host variables not  permitted
  here

  Explanation:  You attempted to use a name where  a  variable  or
  literal  was  required.   The  error  message indicates that you
  probably forgot to type the context variable and a period before
  a  field  name,  or  you  forgot to use quotation marks around a
  quoted string.

  User Action:  Add a context variable  and  a  period  or  use  a
  literal.