Failed to generate a report.

[Carlos Ivan]

Before using session state in IIS reports worked fine, but then we implement session status reports stopped working. He shows me the following error.

" Unable to serialize the session state. In 'StateServer' and 'SQLServer' mode, ASP.NET will serialize the session state objects, and consequently, non-serializable objects or MarshalByRef are allowed. The same restriction applies if the store custom session state performs a similar serialization in 'Custom' mode. "

I appreciate a prompt response. Thank you.

[Carlos Ivan]

Attached images where the errors shown in the browser is displayed.

[Lorena]

Good afternoon.

I also have the same problem, I appreciate a quick solution. Thank you.

System.Web.HttpException: Unable to serialize the session state. In 'StateServer' and 'SQLServer' mode, ASP.NET will serialize the session state objects, and consequently, non-serializable objects or MarshalByRef are allowed. The same restriction applies if the store custom session state performs a similar serialization in 'Custom' mode.

[Stef]

Hello,

Once you set the session state mode for the application, check if your reports and data complies to the rules listed in the Design Considerations for Out-proc Session State help article.

I hope this information helps you.

Regards,
Stef
Telerik