The type or namespace name 'Linq' does not exist in the namespace 'System'

[Hadi]

Hello
I am moving a website from websitepanel to plesk ;
I aslo installed asp3.5 ;
I encountered this error

Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Compiler Error Message: CS0234: The type or namespace name 'Linq' does not exist in the namespace 'System' (are you missing an assembly reference?)


Would you please inform me how I can enable Linq on Plesk ?
Thank you

 

[IgorG]

As far as I see this issue has been resolved in scope of support ticket #2040887, right?