Sub report could not be shown. Sub report works separately - Not with Main Report

Question

I've one main report with 5 sub reports.

Sub report contains more than 10 parameters. (With 10 Multi valued parameters - So I've used Join method to pass value from Main report to Sub Report)

I've also tested Sub report separately and it is all working fine, showing data and everything.

I've tried by making another main report and tried to put that sub report in this newly created main Report but still no success.

I've also checked each and every parameter values and datatypes all are correct as per my store procedure.

I've tried by removing multivalued parameter one by one from Sub report properties to check weather issue is due to this multivalued parameter or what!

When we supply value from main report to sub reprot by using sub report properties - here when I clicked multivalued parameter it comes up with

=Parameters!ParameterName.Value(0) -- (0)

So it is okay or not? As I'm using it as multi selected values.

I'm stuck with this issue and I'm getting below error,

Error: Subreport could not be shown.

Any help please, Thanks in advance.

Please Note:

I've checked this, but No success

I've also checked this, but No success

Getting below error on main Report page,

I've also tried by uploading the all reports on SSRS-2012 but no success.

Answer 1

I believe you've actually already found the cause of your problem.

I've also checked this, nut no success

The post you're refering to has the following accepted answer by lethaljd:

This is a known defect in SSRS 2008. I'm not sure if it has been patched yet, but it has been fixed in SSRS 2012.

As you have found, the workaround is to use separate datasets.

https://connect.microsoft.com/SQLServer/feedback/details/648560/subreport-with-shared-dataset-throws-error

If you check the source that lethaljd has provided, it shows that this hasn't been patched either and probably never will be as it is no longer an issue in the newer versions.

This means that you should probably use a newer version of SSRS or think of a workaround. I'd like to help you think of a different approach but as I've stated in my original comment, you'll need to give a lot more information.
As the question is written now, I do not posses enough details to give you any well founded advice other than using a different version.

That being said, I do not wish this answer to come over as nonconstructive or negative. I just merely want to help you on the right track.