I've a MVC3.0 (.Net 4.0) application which runs perfectly fine on Windows 7 development machine (with VS2010). The same application also runs fine on one of the Windows 8 Server with IIS 7.
However, the very same application throws the exception below on other Windows 8 Server with IIS7.
Operation could destabilize the runtime.
Stack Trace:
[VerificationException: Operation could destabilize the runtime.]
System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData)
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
Please, could someone help me to understand what is causing this issue?
Is it .NET Framework 4.0? (I verified both servers have .Net
Framework 4.0 installed)
Is it IIS and MVC 3.0 Issue? (Do we need to install MVC 3.0 separately for IIS to run?)
How do we setup the web app to run on FULL TRUST in IIS 7?
Or completely something else (tried registering the iis with spnet_regiis.exe -ir did not help either)
Is it necessary to install this http://www.microsoft.com/en-us/download/details.aspx?id=1491 on web server?
Any help will be appreciated.
The VerificationException is thrown when the JIT compiler find mismatching type information in the assemblies or invalid IL instructions. For example, mismatching methods signatures (or return types) between callers and called method (when a method's signature is changed and the dependent assemblies are not recompiled).
To solve the problem you can use peverify to check the assemblies:
peverify MyCompany.WebAppMainAssembly.dll
It will tell what member is causing the conflict. Something like found <method sig>, expected <expected signature>. Now you know what assembly caused the problem. Reinstall it in the GAC if necessary. MVC, EF and Unity have msi installers, or install by hand...
BTW, to run the peverify open the Visual Studio Command Prompt or look for in C:\Program Files (x86)\Microsoft SDKs\Windows\<winver>\Bin (this path can change a bit).
The issue might be related to this hotfix: http://support.microsoft.com/kb/2748645
Based on your explanation of the issue and the tests you've already done, this framework bug sounds like it is the most likely culprit. Even though you are targeting .Net 4.0, .Net 4.5 replaces .Net 4.0 once installed.
Your Windows 7 machine with VS2010 probably does not have .Net 4.5, and therefore is uneffected by the bug.
The working Windows 8 server (which normally comes with .Net 4.5) may have been updated, and therefore already has this hotfix
So the non-working Windows 8 server probably has not been updated with this hotfix yet. (Running the normal Windows updates will eventually get this update as well)
You may want to compare the installed updates on both servers to ensure the environments match.
If you are going to be developing for machines that have .Net 4.5 installed, you want to consider switching to VS2012 or manually installing .Net 4.5 to mirror the changes. But be careful if you also target machines without .Net 4.5, there are other breaking changes...
Visual C# Breaking Changes in Visual Studio 2012
Application Compatibility in the .NET Framework 4.5
Related
I have an application that relies on .NET 6 runtime. If I don't have any .NET runtimes installed on my machine, not only the one my application needs but also without other versions of .net runtime, I could see some messages prompted when execute it.
Does anyone have any insight about how the detection work or who gives the prompted information? Is it done by the OS?
Thanks!
Windows 10 and 11 comes pre-installed with .NET Framework.
A .NET 6 application can be released as a self-contained application that includes the required runtimes to run (if it is not on the machine) as suggested here; https://stackoverflow.com/a/72630528/1165173
https://learn.microsoft.com/en-us/dotnet/core/install/how-to-detect-installed-versions?pivots=os-windows
Can any one help my to fix following error i setup .Netframwork the IIS and register asp.net (aspnet_regiis.exe -i)
Error
Sounds like you hit this issue and need to take some special steps,
http://blogs.msdn.com/b/asiatech/archive/2014/10/28/case-study-http-error-500-0-internal-server-error-from-aspnetinitclrhostfailuremodule.aspx
Root Cause
Although the .NET 4.0 was installed on this computer, the version of
%windir%\system32\mscoree.dll was still v2.0. It should be replaced
with v4.0.
It loads .NET 2.0 runtime mscorwks.dll, not the .NET 4.0 runtime
clr.dll. Therefore some unexpected behaviors occur during the CLR
initialization that causes the worker process to be recycled.
Resolution
You can reinstall .NET 4.0 or re-apply Windows 2008 R2 SP1 to update
mscoree.dll.
I use VS 2010 C# Express
The file is digitally signed (signed/verified with signtool)
Target framework: .NET Framework 4 Client Profile
.NET Framework 4 Client Profile is installed
I'm uploading the exe to a simple static html page
If I (or anyone) click on the download link get the message above
Right-click -> Save Target As... works OK
I can run the file without issues after downloading
May I ask why you are targeting .NET 4.0 Client Platform specifically? Why not go ahead and target to one of the 4.5 versions? Is there a requirement to target a discontinued release of .NET?
Within that link and this one under the 'Additional Information' section, there are statements that indicate an 'in place update' to .NET 4.0 is made to migrate an already installed .NET 4.0 Client Platform to the .NET 4.0 Full Install -- there doesn't appear to be anything written to indicate that 4.0 gets installed by the 4.5 installer, if it's not already installed on the system.
Therefore, all machines with .NET 4.5 installed would have replaced the mentioned 'target framework' of .NET that you're building with something that no longer exists on those machines ... which I believe might account for the popup error received. Can you, at least, try to target one of the 4.5 versions of .NET and update the executable to download on your server? Try again and see if the error goes away? If it does, then the problem that you are facing pertains to .NET Client Platform not (or longer due to 4.5 update) being installed on the client machines.
If that's the case and .NET 4.0 needs to be targeted, then you might need to target the Full 4.0 version instead of the Client Profile version. Or just move to one of the 4.5 versions.
I'd venture to guess that the problem is not within the executable itself but somewhere in the delivery of it into the web page or in the delivery of it back down to the end user; especially considering the program will run without issue once it's downloaded.
Have you completely vetted that process? You mention 'simple static html page' - elaborate on that a bit and you might get more suggestions that will lead you toward a proper solution. Web server used? Technology involved? Personal machine running apache or the like? or some website generator? or something like Wordpress? or some other web hosting company and their products? If the problem lies therein, then further details would be nice to have to help you deduce what is causing issue.
As I'm sure you're aware, that particular error message appears to be presented mostly to products that utilize products created with or included libraries requiring .NET 2.0, 3.0, or 3.5 - since they are (by default) no longer pre-installed on newer systems released with Windows 8+ ... a simple test to rule out the possibility would be to simply install the .NET 3.5 installer and see if the problem magically goes away - if it does, then you may need to do a bit of further research on the 'delivery mechanism' - read, web server used - technology it requires - etc ...
If that's way off ... perhaps this is an x86 vs x64 problem? 32bit app running on 64bit OS? something along those lines? A simple test would be to create 2 executables: one that is configured to build all output as x86 and one to build all output as x64 - see if both behave the same or if there is a difference, and move forward from there.
I believe that in this situation, you will need to play around and run a few tests before getting to the bottom of it. Good luck to you.
I am having a strange issue with a C# .NET 4.0 dll (running with a stub/test application) working with a Firebird database. The setup seems to be correct but when the Firebird (2.5.2 I think) client/dll/provider needs to throw an exception, I always get the following:
Failure: System.TypeLoadException : Could not load type 'System.Runtime.CompilerServices.ExtensionAttribute' from assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.
So, for instance, if I change my connection string to not point to my DB file, it will give this exception instead of something more relevant. This happens whether or not I debug it from Visual Studio 2010 or whether I go and run the EXE manually.
There's another person working on the same code who doesn't have this problem, so it doesn't seem like it would be code related.
Has anybody seen or heard of anything like this? It's getting frustrating to have to guess what the exception is trying to tell me.
UPDATE: So it seems as though everything is x86, so it doesn't look like it's a bit-ness mismatch. And I've checked and double checked that I had the right version of the provider (e.g. NETProvider-3.0.2-Net40). I'm still getting the TypeLoadException.
For reference, in case it inspires anyone, I'm running Windows XP 32 bit. The other person who gets relevant/real exceptions is on Windows 7 (possibly 64 bit).
The problem is that you are using the .NET 4.5 version of the Firebird .NET provider on a .NET 4 system. Microsoft made .NET 4.5 an in-place update, keeping it version 4.0.0.0, while at the same time moving around things like System.Runtime.CompilerServices.ExtensionAttribute to mscorlib to be able to use extension methods in mscorlib. When the .NET 4.5 compiled version is running on .NET 4 it can't locate the class because it is in a different library than expected.
Bottom line: make sure you install the .NET 4 version (NETProvider-3.0.2.0-NET40.7z) from http://www.firebirdsql.org/en/net-provider/
This information is also described on this blog.
You typically get this error when you have a mismatch in bitness. Make sure both your Firebird driver (and all the dependent DLLs downstream) and your executable are set to the same bitness.
Tried with different firebug providers versions, finally
updating .NET to 4.5 on server machine worked for me.
.NET 4.5 download:
http://go.microsoft.com/?linkid=9810134
I have winforms application. When I look at the references they are all .net 4 (same as the application) apart from one which says v2.0. I can run the app locally and use functionality from the .net components but as soon as I take the app to another machine it wont fire up. Apparently this hapens when references cant be found.
Im very confused as to why this would work locally. I have checked the GAC and only .net 2.0 versions exist for the referenced dlls.?..
What are the rules around rererencing dlls from older versions on .net?
It is perfectly fine to have the two versions of the framework running on the same machine. Are both .NET 2 and .NET 4 installed on the second machine you are testing on? I suspect that they are not.
Yes you can reference .Net 2.0 dlls from .Net 4.0 project.
You might be referencing only .Net 2.0 dlls but your target framework might be .Net 4.0, which might not be available on your other machine.
To correct this:
Open your project properties.
Set Target framework to .Net Framework 2.0 or 4.0.
If you set it to 4.0, you must have 4.0 installed on the machine you want it to run on.
The quickest way to see which versions are installed on a machine:
open VS command prompt and type clrver. (Ofcourse you'll need .Net SDK)
To see which framework your app uses type clrver
you can get for your application from task manager (in process tab, click View->select columns->check PID)
Starting .NET 4.0, your app can target multiple frameworks in different AppDomains in the same process.
Remember that the framework that your application is determined automatically, but you can override this default behaviours. One way to do this is what I described above.
Note that the GAC location has changed between .Net 2.0 and .Net 4.0. You most likely have both versions installed on your machine and you have looked at the 2.0 GAC.
The second machine most likely does not have 2.0 installed, hence it fails running.