Hvorfor "Could not load"

Jeg har lavet en hjemmeside skrevet i ASP.NET 2.0. Jeg har udviklet en user control og lagt denne i en seperat dll. På debug serveren (hvor VS.NET er installeret) virker det fint.

Jeg kopierer nu råt alle filerne over (ikke precompiled version) til prod serveren. Der kommer nu en fejl:


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

Parser Error Message: Could not load file or assembly 'Expertsys.Web.UI' or one of its dependencies. The system cannot find the file specified.

Source Error:


Line 1:  <%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>
Line 2: 
Line 3:  <%@ Register Assembly="Expertsys.Web.UI" Namespace="Expertsys.Web.UI.WebControls"
Line 4:      TagPrefix="Expertsys" %>
Line 5: 


Source File: /expertsys2/Default.aspx    Line: 3

Assembly Load Trace: The following information can be helpful to determine why the assembly 'Expertsys.Web.UI' could not be loaded.


WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].


Hvorfor og hvordan kan jeg løse dette? - Har søgt paa nettet. Der skrives at der skal rebuildes, men dette virker ikke. Jeg har checket at der i bin biblioteket findes Expertsys.Web.UI.dll filen. - alt OK!!!!

Desværre har jeg ikke adgang til prod server, da den bliver hostet udenfor min rækkevide.

HJÆÆÆÆÆÆÆÆÆÆÆÆÆÆÆÆÆÆLP