Hello @sonali.rane
Could you please check the answer in this post?
If you are still encountering the problem after trying the solution in the post, please give us the following information:
It seems you are using RFA Java MarketData interface/SSL connection. Please note that the MD interface/SSL connection requires dictionary files "appendix_a" and "enumtyp.def" (the OMM interrface/RSSL connection requires "RDMFieldDictionary " and "enumtyp.def")