Trying to debug a random error on a rather complex ASP.net page, there is a good deal of ADO.net MS-SQL which is where I started trouble shooting. However as of yet I haven't been able to narrow it down. Funny thing is when I debug the code locally in VS (against the same DB connection) I don't get an error. Yet when the code is run against IIS it throws the following error. Anyone encountered anything similar ?
Source Error:
An unhandled exception was generated during the execution of the
current web request. Information regarding the origin and location
of the exception can be identified using the exception stack trace
below.
Stack Trace:
[InvalidOperationException: Operation is not valid due to the current state of the object.]
System.Web.HttpValueCollection.FillFromEncodedBytes(Byte[] bytes, Encoding encoding) +11368719
System.Web.HttpRequest.FillInFormCollection() +329
[HttpException (0x80004005): The URL-encoded form data is not valid.]
System.Web.HttpRequest.FillInFormCollection() +11482818
System.Web.HttpRequest.get_Form() +157
System.Web.HttpRequest.get_HasForm() +11483620
System.Web.UI.Page.GetCollectionBasedOnMethod(Boolean dontReturnNull) +141
System.Web.UI.Page.DeterminePostBackMode() +100
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +259
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.272
Could it be in relation to this issue? A suggested workaround is to add the following in your web.config:
<appSettings>
<add key="aspnet:MaxHttpCollectionKeys" value="2000" />
</appSettings>
Scott Gu also blogged about this vulnerability discovered in ASP.NET.
Related
After completing the ASP.NET MVC 3 tutorial (find here), I tried to publish the app online. I contacted the hosting company to be sure if it's possible to host MVC 3 apps. I had to bin deploy the (dll files) application. So after following some steps on hanselmans blog, I'm getting stuck on following error:
Unable to find the requested .Net Framework Data Provider. It may not be installed.
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.ArgumentException: Unable to find the
requested .Net Framework Data Provider. It may not be installed.
Source Error:
An unhandled exception was generated during the execution of the
current web request. Information regarding the origin and location of
the exception can be identified using the exception stack trace below.
Stack Trace:
[ArgumentException: Unable to find the requested .Net Framework Data
Provider. It may not be installed.]
System.Data.Common.DbProviderFactories.GetFactory(String
providerInvariantName) +1420503
System.Data.Entity.Internal.LazyInternalConnection.TryInitializeFromAppConfig(String
name) +362
System.Data.Entity.Internal.LazyInternalConnection.Initialize() +49
System.Data.Entity.Internal.LazyInternalConnection.get_ConnectionHasModel()
+10 System.Data.Entity.Internal.LazyInternalContext.InitializeContext()
+265 System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type
entityType) +17
System.Data.Entity.Internal.Linq.InternalSet1.Initialize() +62 System.Data.Entity.Internal.Linq.InternalSet1.get_InternalContext()
+15 System.Data.Entity.Infrastructure.DbQuery1.System.Linq.IQueryable.get_Provider() +37 System.Linq.Queryable.OrderByDescending(IQueryable1 source, Expression1 keySelector) +66 MvcMusicStore.Controllers.HomeController.GetTopSellingAlbums(Int32 count) +420 MvcMusicStore.Controllers.HomeController.Index() +47 lambda_method(Closure , ControllerBase , Object[] ) +40 System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) +17 System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary2 parameters) +188
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext
controllerContext, ActionDescriptor actionDescriptor, IDictionary`2
parameters) +27
Any help is appreciated.
From my experience, that error means that the value of the providerName attribute on the connection string in your web.config is either incorrect, or the provider literally is not installed. If your providerName is set to System.Data.SqlServerCe.4.0 (SQL Server Compact), which is not uncommon in development, I can guarantee you that it's not installed on your web host; it's only used inside Visual Studio for development. You probably just need to change it to a the real SQL Server provider: System.Data.SqlClient.
Another data point...
I work with Oracle and the Entity Framework. I installed the Oracle ODP.NET, Managed Driver to get by this problem. In the NuGet Package Manager enter
Install-Package Oracle.ManagedDataAccess
It will update the App.config with the appropriate assembly information and the DbProviderFactories. I'm using VS 2015, Entity Framework 6. I also have the Oracle Developer Tools installed.
I resolved the issue.
I find a space in providerName. So, .net framework is not able to estblish connection string with database.
Check your connectionString tag attribute value.
Your providerName may be not well defined. Look for any spaces (as the naming does not allow any) and check extra characters in providerName value.
I faced the similar Issue .. and there is very funny solution for that .. Just look into your ConnectionString -- If it is same that you have used for your other ASP.Net apps, then it should not be... Entity Framework has a different case altogether
<add name="EmployeeContext" connectionString="Server=.\SQLEXPRESS;Database=DB1;User Id=user1;password=password1;" providerName="System.Data.SqlClient**;**" />
Change it to --
<add name="EmployeeContext" connectionString="Server=.\SQLEXPRESS;Database=DB1;User Id=user1;password=password1;" providerName="System.Data.SqlClient"/>
Can you identify the difference .. only one small -- There is no ';' at the end of ProviderName ..
Yes and that makes the difference .. it should be same to same copy of the ProviderName, though I have not checked the case sensitivity. But that solved my Problem
The error was perfect, and the comments above were good but in my case i literally spelled the provider wrong in the web.config file: System.Data.SqlClinet not System.Data.SqlClient
I added the following to:
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\CONFIG\machine.config
<system.net>
<connectionManagement>
<add address="*" maxconnection="192" />
</connectionManagement>
</system.net>
After saving the application was running fine. However calls to third party web services/web method (MICROSOFT MAPPOINT, another API unrelated to Microsoft i.e two independent references) failed to work. One of which returned the following error:
--------------------------------------
Object reference not set to an instance of an object.
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.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[NullReferenceException: Object reference not set to an instance of an object.]
WebApp.AddUpdate.LoadWebServiceRecord() +7740
WebApp.AddUpdate.MessageBox1_YesClicked(Object sender, EventArgs e) +51
WebApp.webcontrols.MessageBox.Yes_Click(Object sender, EventArgs e) +140
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +114
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +139
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +28
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2980
Version Information: Microsoft .NET Framework Version:2.0.50727.4206; ASP.NET Version:2.0.50727.4209
i.e exception above appears to have been created as it could no longer contact the service.
Remove the amendment in machine.config i.e remove the maxconnection rows and it all works fine again. Any idea why?
Do i need to declare the third party reference's in maxconnection?
if so would it be possible to provide and example?
Generally speaking, you shouldn't have to adjust it manually. ASP.NET 2 sets processModel to auto by default which among other things automatically scales maxconnections for the # of CPUs available (12N).
As to the error you're seeing, there must be more than meets than eye; the two are completely unrelated and there is no reason any maxconnection value would trigger a NullReferenceException in your application.
HTH
References:
http://technet.microsoft.com/en-us/magazine/2006.11.insidemscom.aspx
http://msdn.microsoft.com/en-us/library/7w2sway1.aspx
I wonder if someone could help me out with an issue I'm experiencing trying to get my site up and running on Goddaddy.
I'm trying to get extension-less url rewriting working using the ManagedFusion Rewriter (http://www.codeplex.com/urlrewriter/) Unfortunately I'm getting the following error:
Server Error in '/' Application.
Security Exception
Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file.
Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[SecurityException: Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.]
System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet) +0
System.Security.CodeAccessPermission.Demand() +59
System.Web.Hosting.HostingEnvironment.get_ApplicationID() +61
IIS7Injector.TraceManager.TraceEvent(TraceEventType eventType, String message) +62
IIS7Injector.ConfigManager.IsSkippedUrl(HttpRequest request, String ContentType) +38
IIS7Injector.InjectedContentStream.Write(Byte[] buffer, Int32 offset, Int32 count) +153
ManagedFusion.Rewriter.FormActionFilter.Write(Byte[] buffer, Int32 offset, Int32 count) +485
System.Web.HttpWriter.FilterIntegrated(Boolean finalFiltering, IIS7WorkerRequest wr) +265
System.Web.HttpResponse.FilterOutput() +80
System.Web.CallFilterExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +54
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64
Version Information: Microsoft .NET Framework Version:2.0.50727.1434; ASP.NET Version:2.0.50727.1434
I'm runnung using IIS 7 in integrated mode. I've modified my web.config file by following the instructions in the readme file here:
http://www.codeplex.com/urlrewriter/Release/ProjectReleases.aspx?ReleaseId=22618
Thank very much in advance.
I hit this same exception on a new install, changing the App pool identity to NetworkService / aspnet fixed it.
Additionally, enabling Load User Profile on the app pool also worked.
Try the following:
App Pool -> Advanced Settings -> Load Users Profile = True
for me it was:
1. unblock all files
http://nicholasrogoff.wordpress.com/2010/09/01/how-to-bulk-unblock-files-in-windows-7-or-server-2008/
2.restart application pool
One cause for this problem is when you have done the totally odd thing of publishing you application on the server by using the server to download the application from the Internet. The files will then be marked as originating from the Internet, and security settings then prevent them from running.
The "downloaded-from-Internet" mark is stored in the file system as an NTFS alternative data stream. Use the "Streams" tool to display and remove the flags:
http://technet.microsoft.com/en-us/sysinternals/bb897440.aspx
Then restart the application pool.
This is actually a known issue with GoDaddy's Medium Trust environment. However with the latest release of URL Rewriter 3.0 all these issues are now gone. Please get the latest release and let me know if you have any issues.
I had a similar issue with GoDaddy. Even though it didn't seem related at first since it's not in the stack trace (and may not apply to you since you're using third party code), removing Response.End() calls solved the issue in my case.
I had this issue because of a networked drive at work.When i moved my project to my desktop it started working again.
How can I figure out what is actually causing the following error? The page is the same as other pages but for some reason, only this page is having this error. It also only happens on the ISP (GoDaddy) who has a trust level of Medium and I can't set a breakpoint and try to catch it.
Server Error in '/' Application.
Security Exception
Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file.
Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.EnvironmentPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[SecurityException: Request for the permission of type 'System.Security.Permissions.EnvironmentPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.]
System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet) +0
System.Security.CodeAccessPermission.Demand() +59
System.IO.Path.GetTempPath() +54
hh.a(Int32 A_0, Boolean A_1, Boolean A_2) +20
jg.b(c A_0, UInt64 A_1) +234
ei.b(c A_0, UInt64 A_1) +18
jg.a(c A_0, UInt64 A_1, Boolean A_2) +61
Version Information: Microsoft .NET Framework Version:2.0.50727.1433; ASP.NET Version:2.0.50727.1433
If you have had this issue or just know how I can fix or trace it please add your answer. Trust level of Medium is required by the ISP.
Have you tried using a local instance of IIS and setting the trust level to medium? That would help you debug and try stuff a little quicker.
(And is a good habit to get into anyway. You want to test in an environment as close to production as possible. And the VS web server definitely has a few important differences that can get you if you don't test in IIS too.)
I don't believe GoDaddy supports Full trust - though that may have changed recently. The error is caused by the System.IO.Path.GetTempPath call, which requires EnvironmentPermission.
The call stack prior to that is obfuscated, so my guess is it's from a component vendor. Check for an update or fix for partial trust from them, or replace it.
Setting breakpoints in obfuscated, non-debug assemblies are hard. It will likely lead you nowhere.
Find out why the obfuscated component is trying to access the temp path.
I received the following error while trying to login to a secured directory. As far as I know there are no large hashtables in use. The user login information is in the web.config file. Notice this is happening in .NET 2.0. I've searched and found references to this occurring in .net 1.0 or 1.1 environments but I haven't found a solution for it happening in 2.0+.
I need to figure out why this happened so I can avoid it in the future. I could just reset the server and maybe it goes away but I would prefer to understand why it happened.
Here is the entire error page as shown:
Server Error in '/' Application.
Hashtable insert failed. Load factor
too high.
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.InvalidOperationException:
Hashtable insert failed. Load factor
too high.
Source Error:
An unhandled exception was generated
during the execution of the current
web request. Information regarding the
origin and location of the exception
can be identified using the exception
stack trace below.
Stack Trace:
[InvalidOperationException: Hashtable
insert failed. Load factor too high.]
System.Collections.Hashtable.Insert(Object
key, Object nvalue, Boolean add)
+2903977 System.Collections.Hashtable.set_Item(Object
key, Object value) +11
System.ComponentModel.ReflectTypeDescriptionProvider.ReflectGetAttributes(Type
type) +323
System.ComponentModel.ReflectedTypeData.GetAttributes()
+36 System.ComponentModel.DefaultTypeDescriptor.System.ComponentModel.ICustomTypeDescriptor.GetAttributes()
+50 System.ComponentModel.TypeDescriptor.GetAttributes(Type
componentType) +26
System.Web.UI.ThemeableAttribute.IsTypeThemeable(Type
type) +98
System.Web.UI.Control.ApplySkin(Page
page) +49
System.Web.UI.Control.InitRecursive(Control
namingContainer) +2120286
System.Web.UI.Control.InitRecursive(Control
namingContainer) +198
System.Web.UI.Control.InitRecursive(Control
namingContainer) +198
System.Web.UI.Control.InitRecursive(Control
namingContainer) +198
System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean
includeStagesAfterAsyncPoint) +834
Version Information: Microsoft .NET
Framework Version:2.0.50727.1433;
ASP.NET Version:2.0.50727.1433
The following hotfix addresses this (and other) issues.
http://support.microsoft.com/?id=927579
(information sourced from here)
In .NET 4.0, this same bug reappeared; it was fixed in a hotfix with KB:2576011. It may now be rolled up into standard updates (haven't checked), but: a hotfix for 4.0 is available from MS if needed.
I've had a similar issue, outlined here:
HashTable Insert Failed. Load Factor Too High. .NET 2.0 SP2
However, the 927579 hotfix was included in .NET 2.0 SP1 ( http://support.microsoft.com/kb/945757 ) and we still got the same issue as listed above. Hopefully the newer hotfix ( http://code.msdn.microsoft.com/KB968432 ) will resolve it once and for all.
I can't vouch for it as I haven't had chance to install it on our server yet, and considering we haven't had a recurrence of the problem after the last time then even if it had been installed I wouldn't be able to say whether it works or not!