Hi dear,
Today i installed chat module for testing purpose in dotnetnuke 5.4.1, and i got this error message when i try to my web site on hosting comp.
Server Error in '/' Application.
--------------------------------------------------------------------------------

Compilation 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: BC30002: Type 'Web.HttpContext' is not defined.

Source Error:

Line 307:
Line 308:            Try
Line 309:                Dim ctx As Web.HttpContext = Web.HttpContext.Current
Line 310:                Dim lvstrImageRoot As String = String.Empty
Line 311:                oCache = ctx.Cache.Get(key)
 

Source File: E:\inetpub\vhosts\mysite.com\httpdocs\App_Code\Chat\DnnChatCodeHelper.vb    Line: 309

Why? What do i need to do bring my page back :( .... I mean how can i uninstall or get ride of chat module or can it be fixed?

Thank you

But you are not answering the question. I have exactly the same situation. What should I do to revert the installation?

I had the same issue, but my 'situation' was slightly different...

After installing the DNN Chat module, I launched my site in Firefox and Chrome and got this compile error. Having had a quick look at various forums, I came across this post, however, I didn't read the linking post about adding System.**** to the DNNChatModuleHelpder.vb file and had deleted the 'Chat' module before via WebMatrix IDE. I had a quick look at App_Code > Chat folder and added the System.*** entry as mentioned, but this didn't resolve the issue. I then had to dive a little deeper and once I deleted the 'Add resource' instruction from web.config (line 126, I think?) - Issue resolved. Phew!