[Solved] ASP.Net Crystal Report Error: The located assemblys manifest definition does not match the assembly reference

Hi

I am developing a project using Crystal Report sp31. in my localhost, every things working such as view, print, export. 

after publish to my remote server that page displayed; "Could not load file or assembly 'log4net, Version=1.2.10.0, Culture=neutral, PublicKeyToken=692fbea5521e1304' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)"

I was

• install log4net to visual studio via ‘Manage NuGet packages’ and add to references. (log4net  by The Apache Software Foundation)
• No modification on web.config
• No insulation of crystal report tools to remote IIS server

Please help me to fix above issue

Thanking 

samsmuthu