JasperReport parameters work in iReport, but do not work on JasperServer

Question

I have a report created in iReport. Set the parameter with the parameter isForPrompting = "true". When I go and check it with a preview, everything works.

Parameter: Symbol SQL Query: select * from "table" where "column" = $P{Symbol} -- I'm using Postgres. 

Then I use Navigator Navigator to upload to the server. The server returns "no pages". Any thoughts. I checked that the report works both in iReport and JasperServer if the parameter is deleted and the value is hardcoded in the sql query, as shown below.

 <queryString> <![CDATA[select * from "tablename" where "column" = 'testsymbol']]> </queryString> 

Answer 1

Yes, it was input control. Now it works ... thanks @precose !!!