xml document error when running a SQL Server Reporting services report

Question

I have a SQL Server 2008 reporting services report which runs fine in preview mode using Visual studio 2008, but when I deploy it to the report server and run it there, it throws the following error. what does this error mean and how can I fix it? Thanks in advance. "There is an error in XML document (1, 170604). '.', hexadecimal value 0x00, is an invalid character. Line 1, position 170604. "

Answer 1

Check your report parameters for unprintable control characters.