Have many BEx Variables in various BEx Queries. Can't use Query Prompt Selector component which gives Request Processing Failed Error. Need WORKAROUND/Solution. Dashboards 4.0 Sp05 Patch 4.

Hi Experts

I'm Using Dashboards 4.0 SP05 Patch 4.

I have to provide 6 Charts in my Dashboard which needs 6 or more BEx Queries. Each BEx Query is having 10 to 15 BEx Variables/Prompts.

Here, i'm using Query Prompt Selector component to get input. It works fine in Dashboard designer's Preview. But, When i open the Dashboard in BI Launchpad, it is giving the familiar error "Request Processing Failed":

Request processing failed. (XLS 000009)

Request processing failed. (XLS 000009) while trying to invoke the method java.lang.Object.getClass() of an object loaded from local variable 'io'

I'm not getting the LOVs in the Query Prompt Selector Component. (think it is due to the above error)

I did Restart of Dashboard Processing Server, Dashboard Cache Server in CMC. (Suggested in Some Discussion). But, It doesn't solve the problem.

I didn't get solution from Other threads.

Please help me with ample information. 

Please note: I don't prefer to get all the data inside Excel. (avoiding Query Prompt and using Filter Component)

Need Workarounds.

Thanks in Advance

Appu