Hi Experts,

I am facing an issue with SSRS 2008.


Currently I am modifying a SSRS report which will take parameters
from
an XML datasource.


I am using sub reports on my main report and passing parameter values
to sub reports from main report. Sub reports working good without any
issue individually but when I am running them from the main report I
am getting error "An eror occured during local report processing
Hidden expression for tablix (Sub report tablix) contains an error.
Object reference not set to an instance of an object".


I am using custom assembly to get the parameter values for the
reports.


Any help will be appriciated.


Regards
Dinesh