I'm working in a web application that work in asp.net with ajax but I have a problem, I'm having the message error:
Sys.Webforms.PageRequestManagerServerErrorException: Object reference not set to an instance of an object
I tried all the options of: http://forums.asp.net/t/1069384.aspx but don't work!
I don`t know what's the problem, because I have two servers and they're one where the application have not problem, and the other with the same configuration and the same application have the problem. So I don't know if the problem is the server configuration, I need a clue, please help me!, I'm 10 days with the problem.
Thanks a lot!
I have the same problom!
One server, two website with one compilation. one is ok and the other throw **Sys.Webforms.PageRequestManagerServerErrorException: Object reference not set to an instance of an objec**t error
Related
I migrated this application and it's database to a production server. In fact within the production environment it runs fine in debug mode... but when I deploy it I get this error. This is a common error with EF Code First but none of the usual fixes have worked. Any help or suggestions would be greatly appreciated!
I would delete the question but have added the answer as it was a strange circumstance that was difficult to figure out. I think it will rarely happen to others as I have only seen one or two other similar circumstances across the web... but am posting just in case it can help someone else out. I figured it out by deploying a different ASP application to the same application pool which gave a different exception: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible.
After researching this I saw a circumstance where someone suggested giving the IIS USER the DB Owner role within the corresponding SQL Server Login. I did it as a last ditched effort and amazingly it worked! After doing this I re-deployed the original MVC application that was producing the error above and it worked fine.
Thanks for taking the time to look at this.
I have a COM component that I would like to use from Classic ASP. It is registered correctly using both the 64 and 32 bit version of regasm, using the /codebase switch.
All assemblies are signed with a strong name (although the key is not protected with a password). When I register the types, I get a confirmation that they were registered successfully.
If I make a VBScript file that attempts to create the COM component, it succeeds without issues when I run it with both the 64 and the 32 bit version of cscript.exe.
However, when I try to do a Server.CreateObject on the exact same COM component, I get the following error:
Server object error 'ASP 0177 : 80070002'
Server.CreateObject Failed
somefile.asp, line 2
80070002
The line provided by the excepton just contains the Server.CreateObject statement.
The assembly is AnyCPU, and the type I am trying to expose has a [ComVisible(true)] attribute set on it. The rest of the assembly is not COM visible.
Any clue on what I am experiencing here? I tried giving full permission to Everyone for the DLL files because I originally thought it was an IIS issue. However, that simply doesn't seem to be the case.
I have Googled this for many hours and seen countless similar questions, but this is not related, since none of the proposed solutions work.
If it works correctly with cscript.exe and failed in ASP, almost all the time that is due to the security context or file/register permission issue. ASP runs under the IIS user realm, and you will need to ensure that user ID has access to all the resources (including temp file/folder) needed for your COM object.
I solved it, but as I suspected, it wasn't the same cause as seen in other questions.
Apparently if you try to register a DLL from a network share, it will provide those symptoms, although the message is "Types registered successfully".
Very scary.
When moving all my DLLs to a local folder on the machine, they registered and ran successfully without issues.
I'm just wondering, why I get error during an iisreset in my development machine.
When I execute the command in a Command Prompt some times it wokrs,sometimes it throws an Access Denied Error, and sometimes it throws a file not found exception.
If anyone finds a solution to this anoying problem, I would appreciate a hint how to get rid of it.
In the IIS I'm just hosting an .NET 4.6.1 MVC site.
This stupid error happens randomly and was very annoying especially when you place iisreset inside a script and assume it will do its thing; took me a while to figure it out. It is not related to the service being stopped as can be seen in this picture:
The only thing I use now is:
net stop W3SVC
and
net start W3SVC
Haven't had a problem since then.
I got exactly the same error time ago. Running it in German too. Take a look at this article: https://techcommunity.microsoft.com/t5/iis-support-blog/iis-reset-issue-restart-attempt-failed/ba-p/1031976
Judging from #Giorgi Nakeuri's question about the event logs. The "World Wide Web Publishing" (called only "WWW-Publishingdienst" in German) is very likely not running. You need to start it. The "Windows activity process service" fails because of the first one failing.
I think it says that he was unable to start the service, mainly due to a Problem with authorization. The solution of the problem can be provided in several different ways
1- Configuration causing the authorization error can be corrected
applicationHost.config with XML
2- This authorization can be revoked through the Windows register. Example approach here:
https://stackoverflow.com/a/21036837/914284
3- Machine configuration can be changed in accordance with this
permission. Please continue with the option that suits you :)
https://knowledge.digicert.com/solution/SO1360
i hope it will resolve
Specifying the machine name also helps in some scenarios:
iisreset %ComputerName%
I am working on website, yesterday i faced a problem i.e server got down. i have checked the event log files then i came to know that it was due to "event id 1309 asp.net 4.0 unhandled exception" error. i just restore the back up of the website and restart the website it got worked.
Now my concern is why i got this error: is the criteria i had followed is actual way to recover from this error. i am asking this because might be we will not have latest code back up in future then what will we do? so i am asking to experts
why this errors occurred, what is exact caused for this.?
Best way to overcome this.
I have read theThis link and came to know this is due to
This problem occurs because the public headers properties of the Request.Headers property and of the Response.Headers property become non-serializable after you install the MS07-040 security update
But i have not used "Request.Headers".. please guide me.
We have an ASP.NET web service (net 2.0/3.5) which after a couple of weeks of use gives a message
"System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.IO.FileNotFoundException: Could not find file 'c:\windows\Temp\xxxxxx.dll'"
where the filename xxxxxx.dll is a random string which changes on every occurence of the problem.
Once the error happens, even the 'iisreset' command does not fix the problem. A server re-boot fix the issue for couple of weeks. But then it comes again.
I have seen a lot of links where temporary file storage is the problem as a result of XmlSerializer dynamic compilation. Our Web Service code consumes Java web service, other than that, there is no explicit usage of XmlSerializer class.
Any ideas/advice?
Thanks in advance!
This blog post definitely solved the problem that we were facing (This will describe the problem we were facing). - http://devatheart.azurewebsites.net/2011/04/18/troubleshooting-xmlserializer-failure/
We had this piece of code
System.Diagnostics.Process.Start(RetrievedURL);
which was generating IE processes (Since IE was the default browser on the webserver) in the background on the button click and opening webpage.
Not a smart thing to have but we removed that code and it has definitely stopped the IE processes in the background.
How it is linked to XML Serialization Failure is explained in the above post.
Thanks for the research and this blog post Slobodan Stipic, a.k.a. Slobo.
Hope this solution helps others in future.
Try granting full permissions to this folder to the account you are using to run your application under.