Works on local machine, not on server: Could not load file

We implemented the AjaxControlToolkit in development, added some widgets and everything works fine.

The local machine is a win7 64-bit machine.

When we deploy the web application on our server (win server 2003, 32 bit) to IIS 5 we get the following exception:

Works on local machine, not on server: Could not load file or assembly 'AjaxControlToolkit' or one of its dependencies. The system cannot find the file specified.

Server Error in '/' Application.
--------------------------------------------------------------------------------

Parser Error
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 'AjaxControlToolkit' 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: Debug="true" %>
Line 3: <%@ Register assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" tagprefix="asp" %>
Line 4:
Line 5:

1 Reply

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Javeed M Shaikh13y ago
Accepted answer
Check the following:

1. The assembly (AjaxControlToolkit.dll) needs to be deployed to the Global Assembly Cache (GAC) or put in the \BIN folder of the site's folder.

2. Check your IIS and ASP.NET set-up, and make sure that everything is running on the same version as you developed you application in.