I am using to generate rdlc report on my windows application. I have the one main report and more than 30 sub reports, which will render based on dataset values. Everything is working fine, but some time i got the following error when try to generate the report.
"An error occurred during local report processing. Object reference not set to an instance of an object." This is not all the the times. Sometime i am getting these errors. I can't even figure it out. It would be great if you help to sort it out.
Log file shows, these following kind of errors.
2019-07-23 15:40:28.7647|ERROR|31|ReportServerDatabaseUnavailableException| RequestID = s_f3d17e92-0f8b-458e-bcb7-935b64f6dcca2019-07-23 15:40:53.9509|ERROR|31|ReportServerDatabaseUnavailableException| RequestID = s_9a6239fb-ad9c-4868-a964-9945cb0211a0
2019-07-23 15:41:22.7403|ERROR|30|ReportServerDatabaseUnavailableException| RequestID = s_2537a3e6-5822-41f7-b5dc-394c69f5c374
2019-07-23 15:41:49.1221|ERROR|30|ReportServerDatabaseUnavailableException| RequestID = s_858edb9b-5c0e-4c31-a666-9d8548cbf259
2019-07-23 15:41:59.1346|ERROR|30|ReportServerDatabaseUnavailableException| RequestID = s_ecda0f7b-ced8-4757-80c6-4e1540dcd00e
2019-07-23 15:42:25.1251|ERROR|27|ReportServerDatabaseUnavailableException| RequestID = s_0352387f-756d-494d-ba32-4075d27d4931
2019-07-23 15:42:35.1383|ERROR|27|ReportServerDatabaseUnavailableException| RequestID = s_a51ea9e5-b670-49c0-bc8d-161dc8969198
Thanks, Thineshbabu