.net - Using Two Versions Of The Same Assembly (system.web.mvc) At The Same Time?
May 13, 2010
I'm using a content management system whose admin interface uses MVC 1.0. I would like to build the public parts of the site using MVC 2.
If I just reference System.Web.Mvc version 2 in my project the admin mode doesn't work as the reference to System.Web.Mvc.ViewPage created by the views in the admin interface is ambiguous:
The type 'System.Web.Mvc.ViewPage' is ambiguous: it could come from assembly 'C:WindowsassemblyGAC_MSILSystem.Web.Mvc2.0.0.0__31bf3856ad364e35System.Web.Mvc.dll' or from assembly 'C:WindowsassemblyGAC_MSILSystem.Web.Mvc1.0.0.0__31bf3856ad364e35System.Web.Mvc.dll'. Please specify the assembly explicitly in the type name.
I could easily work around this by using binding redirects to specify that MVC 2 should always be used. Unfortunately the content management systems admin mode isn't compatible with MVC 2. I'm not exactly sure why, but I start getting a bunch of null reference exceptions in some of it's actions when I try it and the developers of the CMS have confirmed that it isn't compatible with MVC 2 (yet).
The admin interface which is accessed through domain.com/admin is not physically located in webroot/admin but in the program files folder on the server and domain.com/admin is instead routed there using a virtual path provider. Therefor, putting a separate web.config file in the admin folder to specify a different version of System.Web.Mvc for that part of the site isn't an option as that won't fly when using shared hosting.
Perhaps it's possible to specify that for some assemblies a different version of a referenced assembly should be used?
I have recently discovered that I am affected by this bug http://www.mail-archive.com/mono-bugs@lists.ximian.com/msg71515.html
Well,at http://www.mail-archive.com/mono-bugs@lists.ximian.com/msg71529.html they say the work around is to create a global policy assembly and redirect the assemblies that way since it is not read from the web.config.
How do you actually do what they describe there? There is a huge documentation gap in that area with Mono.Also,I can't just recompile the assembly to use the new Mono assembly versions because the assembly is closed source.(but it does work with Mono.)
I built an assembly, and that assembly refereces a DLL in my bin folder (lets call it Bob.dll). so multiple users may have different versions of Bob.dll...but by and large they all function the same.
However when my assembly gets dumped into the bin folder, it wants the version it was compiled against.
Is there a way to compile a reference such that it'll just be happy with ANY version?
I know it can be done with assembly binding in the webconfig, but I dont want users to have to do that.
I have 2 assemblies with the same name but with different version 1.0.0.0 and 1.0.0.1. I have installed it in GAC and want to use 1 of these versions during run time from my C# application(for e.g - based on locale) in asp.net 2.0.
One of the libraries I am including in my project makes use of System.Web.Extensions 3.5.0.0, which conflicts with my Framework 2.0 application, which uses (C:Program FilesMicrosoft ASP.NETASP.NET 2.0 AJAX Extensionsv1.0.61025System.Web.Extensions.dll). I can think of 3 possible solutions:
Ignore the warning and don't change anything. I am not sure what the application does to handle this. Add an assembly binding element to my web.config (see below) Configure the application explicitly to use different assemblies (I think this is possible, but don't know how to do it).
However, I am unsure of the implications of each of these decisions. The application seems to work perfectly fine even when I ignore the warnings (solution 1), but ignoring warnings that I don't fully understand bugs me...as does having warnings like this show up at all.
i have installed ajax control kit successfully and all controls already came in toolbar tab named "Ajax Control toolkit"But when i try to design any page using with ajax control toolkit, follow error is coming:
Could not load type 'System.Web.UI.ScriptReferenceBase' from assembly 'System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.TypeLoadException: Could not load type 'System.Web.UI.ScriptReferenceBase' from assembly 'System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.
Source Error:[Code]....
Stack Trace: [Code]....
[TypeLoadException: Could not load type 'System.Web.UI.ScriptReferenceBase' from assembly 'System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.] AjaxControlToolkit.ToolkitScriptManager.OnResolveScriptReference(ScriptReferenceEventArgs e) in [code]...
I am using VIsual Studio 2008 , framework 3.5 but i don't know why in error information version is showing 2.0
i install tool kit according 3.5 framework.also note, framework built-in ajax tags i can use fine and they work properly.
i have installed ajaxtoolkit 3.5 but when i debug i am getting this error Could not load type 'System.Web.UI.ScriptReferenceBase' from assembly 'System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' even i have changed my tags to
Could not load file or assembly 'System.Windows, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e' or one of its dependencies. The system cannot find the file specified.
Description:
An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.IO.FileNotFoundException: Could not load file or assembly 'System.Windows, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e' or one of its dependencies. The system cannot find the file specified.
Source Error:
[Code]....
Source File:
c:ProductiveTeamsMedTegraPresentationMedTegraSLMedTegraSL.WebMainMaster.Master Line: 16 Assembly Load Trace: The following information can be to determine why the assembly 'System.Windows, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e' could not be loaded.
in mscorlib.dll assembly with "System" namespace present ,why it was necessery to take the same name "System" for a assembly System.dll ? Is there any relation in choosing the same name ?
I purchased a new computer and put all my development software on. Now when I load an asp.net 2.0 project I get the following error:-
Code: Error3E:RPPResolve-ITASPDotNET2.0HansooKwanDirections.aspx: ASP.NET runtime error: Could not load file or assembly 'System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified. (E:RPPResolve-ITASPDotNET2.0HansooKwanweb.config line 44)E:RPPResolve-ITASPDotNET2.0HansooKwanDirections.aspx11E:...HansooKwan
I'm having trouble moving a website from one server to another. It seems to be a problem loading multiple versions of System.Web.Extensions. The code uses version 3.5 in most places but a third party control appears to be needing version 1.0.6. I didn't think this was possible but it appears to be working in it's current situation.
Is there a way I can use the GAC version of System.Web.Extensions for the site but import a dll of version 1.0.6 just for these controls?
Configuration Error Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.
Parser Error Message: Could not load file or assembly 'System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.
Source Error:
[Code]....
Source File: C:inetpubwwwrootIMGcupweb.config Line: 24 Assembly Load Trace: The following information can be helpful to determine why the assembly 'System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' could not be loaded.
I installed the app http://and when I ran the default page I get the error below:From my research they ask you to copy the DLLs into your bin folder and I did and still would not work.I see the DLLs at C:WINDOWSassembly folder.Where am I supposed to have the DLLs? what is the best practice? The log clearly shows it is looking for LOG: Initial PrivatePath = C:InetpubwwwrootPTIssueTracker2.5in after I enabled the Fusion log registry.i found the DLLs at C:Program FilesReference AssembliesMicrosoftFrameworkv3.5. Below is the error:
Configuration Error Description:
An error occurred during the processing of a configuration file required to service this request.
Parser Error Message: Could not load file or assembly 'System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.
Source Error:
[Code]....
Source File: C:InetpubwwwrootPTIssueTracker2.5web.config Line: 80 Assembly Load Trace: The following information can be helpful to determine why the assembly 'System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' could not be loaded.
[Code]....
If I copy the DLLs from C:Program FilesReference AssembliesMicrosoftFrameworkv3.5 into C:InetpubwwwrootPTIssueTracker2.5in, I get the error below:
Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.
Parser Error Message: Could not load file or assembly 'System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
I have an ASP.NET project and I want to use some AjaxToolKit Extenders on my pages.
The site is created in VS2010, set to Framework 4.0.
This is what I did:
1) Add reference "AjaxToolKit.dll" to my project.
2) Add to the toolbar the same file for the controls
3) Add "ToolkitScriptManager" to the page source.
This adds the declaration to the source as well.
Right after this I get the following error:
Reference required to assembly 'System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' containing the base class 'System.Web.UI.ScriptManager'. Add one to your project.
An error occurred during the processing of a configuration file required to service this request. review the specific error details below and modify your configuration file appropriately.Parser Error Message: Could not load file or assembly 'System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.
I have a rather simple internal ASP.Net Website that has issues loading the Microsoft.Practices.EnterpriseLibrary.Data dll about once a week. Here is the Exception message:
System.IO.FileLoadException: Could not load file or assembly 'Microsoft.Practices.EnterpriseLibrary.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. Access is denied. File name: 'Microsoft.Practices.EnterpriseLibrary.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null' at foobar.Intranet.Logic.Data.UserDB.SelectByUserName(String userName) at foobar.Intranet.Logic.Info.User.ValidateUser(String userName) in F:Developmentfoobarfoobarfoobar.Intranet.LogicInfoUser.cs:line 130 at Login.ValidateUser(String username, String password) in e:foobarfoobar.IntranetLogin.aspx.cs:line 32
LOG: This bind starts in default load context. LOG: Using application configuration file: E:foobarfoobar.Intranetweb.config LOG: Using host configuration file: \?C:WINDOWSMicrosoft.NETFrameworkv2.0.50727aspnet.config LOG: Using machine configuration file from C:WINDOWSMicrosoft.NETFrameworkv2.0.50727configmachine.config. LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind). LOG: Attempting download of new URL file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/Temporary ASP.NET Files/foobar.intranet/668896d8/82d7e51c/Microsoft.Practices.EnterpriseLibrary.Data.DLL. LOG: Attempting download of new URL file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/Temporary ASP.NET Files/foobar.intranet/668896d8/82d7e51c/Microsoft.Practices.EnterpriseLibrary.Data/Microsoft.Practices.EnterpriseLibrary.Data.DLL. LOG: Attempting download of new URL file:///E:/foobar/foobar.Intranet/bin/Microsoft.Practices.EnterpriseLibrary.Data.DLL. ERR: Failed to complete setup of assembly (hr = 0x80070005). Probing terminated.
Things of note:
A simple IIS Reset fixes the issue. We had the same code running on a single webserver with no problems. We then moved the site to two new, load balanced (using sticky sessions) webservers (all three Windows Server 2003 R2 Standard Edition SP1). Now each of the load balanced webservers throw this exception about once a week just out of the blue.The only major difference I can think of, is I've installed the 4.0 .NET framework on the load balanced servers. The website is still running under ASP.NET 2.0 so I don't see how this would be an issue I've configured the indexing service to not search the "Temporary ASP.NET Files" folder, but it didn't help. We use the Microsoft.Practices.EnterpriseLibrary.Data dll everywhere on our site. Almost every single page uses our logic dll which in turn utilizes the EnterpriseLibrary dlls. While the errors where happening once, I even looked to see what processes were locking the dll in the "Temporary ASP.NET Files" folder, and it wasn't any different than the locks on the server that was working fine. Once the error starts, it errors every single time until an iisreset is performed.
I've tried deploying my asp.net app to a new server and I get this error:
Could not load file or assembly 'System.Web.Entity, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. The system cannot find the file specified.
Sure enough, System.Web.Entity isn't found in C:WindowsAssembly. However, the server has MS .NET Framework 3.5 installed and also MS ASP.NET 2.0 AJAX Extensions 1.0. Is this something I need to deploy with my app, or something I need to be installed on the server? It's not my own server so xcopy deployment within my app folder would be much better if that's possible.
i am gettting the following error on the webpage...
Error Message: Could not load type 'System.Web.UI.ScriptReferenceBase' from assembly 'System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.
Error Source:
AjaxControlToolkit
Stack Trace:
at AjaxControlToolkit.ToolkitScriptManager.OnResolveScriptReference(ScriptReferenceEventArgs e) at System.Web.UI.ScriptManager.RegisterScripts() at System.Web.UI.ScriptManager.OnPagePreRenderComplete(Object sender, EventArgs e) at System.Web.UI.Page.OnPreRenderComplete(EventArgs e) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
I'm using Visual Studio 2008 and i downloaded the toolkit from Codeplex,I downloaded the zip file which i've marked red in the below link..This is my code, [Code]....
& this is the error i get," Could not load type 'System.Web.UI.ScriptReferenceBase' from assembly 'System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' "
I saw this post,http://forums.asp.net/p/1273185/3439540.aspx and
i changed my TOOLSCRIPTMANAGER into SCRIPTMANAGER & now i get this error http://forums.asp.net/t/1529516.aspx
Configuration Error Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.
Parser Error Message: Could not load file or assembly 'System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.
Source Error: [Code]....
Source File: C:inetpubwwwrootIMGcupweb.config Line: 24 Assembly Load Trace: The following information can be helpful to determine why the assembly 'System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' could not be loaded.
I installed Cahrt control of ASP:Net and It works fine on local. I made neccessary changes on web.config but When I deploy it to my site I am getting the error ! It says as below;
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 'System.Web.DataVisualization, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.
I am getting this message on my Page element. However my project references C:Program FilesMicrosoft ASP.NETASP.NET MVC 2AssembliesSystem.Web.Mvc.dllwhich is Version 2.0.0.0Furthermore my Web.config contains
