Error with nvarchar(max) and text fields

when I compare 2 databases with text fields, I get an error as follows on the below command from the diff script:

EXEC(N'DECLARE @pv binary(16)
'+N'SELECT @pv=TEXTPTR([notes_log]) FROM [cqadmin].[Defect] WHERE [dbid]=33731958
UPDATETEXT [cqadmin].[Defect].[notes_log] @pv NULL NULL N''
===== State: Review by:lvl7build at 09/11/2013 08:35:25 =====
Coverity resolved this issue based on label: FMZ20130911_1

...')

Error:

Cannot convert data type nvarchar(max) to text.