I am getting the following error intermittently on one of our build environments (not on my local machine) - ignore the NH version - I compiled the assembly form source. The app pool is then restarted in iis. I cannot find out where this is originating from. Any ideas?
An unhandled exception occurred and the process was terminated.
Application ID: DefaultDomain
Process ID: 2428
Exception: System.Runtime.Serialization.SerializationException
Message: Unable to find assembly 'NHibernate.Search, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null'.
StackTrace: at System.Runtime.Serialization.Formatters.Binary.BinaryAssemblyInfo.GetAssembly()
at System.Runtime.Serialization.Formatters.Binary.ObjectReader.GetType(BinaryAssemblyInfo assemblyInfo, String name)
at System.Runtime.Serialization.Formatters.Binary.ObjectMap..ctor(String objectName, String[] memberNames, BinaryTypeEnum[] binaryTypeEnumA, Object[] typeInformationA, Int32[] memberAssemIds, ObjectReader objectReader, Int32 objectId, BinaryAssemblyInfo assemblyInfo, SizedArray assemIdToAssemblyTable)
at System.Runtime.Serialization.Formatters.Binary.__BinaryParser.ReadObjectWithMapTyped(BinaryObjectWithMapTyped record)
at System.Runtime.Serialization.Formatters.Binary.__BinaryParser.Run()
at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(HeaderHandler handler, __BinaryParser serParser, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage)
at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream, HeaderHandler handler, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage)
at System.AppDomain.Deserialize(Byte[] blob)
at System.AppDomain.UnmarshalObject(Byte[] blob)
Related
I delpoyed my web application (which uses LDAP) on windows server 2016. It is throwing below error. Though I am able to access same ADLDS instance using ADSI or C# console application (created utility to test connectivity). But not sure why its throwing error with web application. Please suggest.
Server Error in '/' Application.
**While trying to resolve a cross-store reference, the SID of the target principal could not be resolved. The error code is 1722.**
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.DirectoryServices.AccountManagement.PrincipalOperationException: While trying to resolve a cross-store reference, the SID of the target principal could not be resolved. The error code is 1722.
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:
[PrincipalOperationException: While trying to resolve a cross-store reference, the SID of the target principal could not be resolved. The error code is 1722.]
System.DirectoryServices.AccountManagement.ADStoreCtx.ResolveCrossStoreRefToPrincipal(Object o) +570
System.DirectoryServices.AccountManagement.ADUtils.DirectoryEntryAsPrincipal(DirectoryEntry de, ADStoreCtx storeCtx) +133
System.DirectoryServices.AccountManagement.ADDNLinkedAttrSet.get_CurrentAsPrincipal() +86
System.DirectoryServices.AccountManagement.PrincipalCollectionEnumerator.MoveNext() +252
System.DirectoryServices.AccountManagement.PrincipalCollectionEnumerator.System.Collections.IEnumerator.MoveNext() +9
System.Linq.<SelectManyIterator>d__22`3.MoveNext() +65
System.Linq.Lookup`2.Create(IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector, IEqualityComparer`1 comparer) +264
System.Linq.GroupedEnumerable`3.GetEnumerator() +72
System.Linq.WhereSelectEnumerableIterator`2.MoveNext() +63
System.Collections.Generic.List`1.InsertRange(Int32 index, IEnumerable`1 collection) +392
System.Collections.Generic.List`1.AddRange(IEnumerable`1 collection) +15
Plastin.Common.Security.ADLDSClaimsProvider.SetApplicationClaims() +1012
Plastin.Common.Security.ADLDSClaimsProvider.Initialise() +174
Plastin.Common.Security.ADLDSClaimsProvider..cctor() +238
[TypeInitializationException: The type initializer for 'Plastin.Common.Security.ADLDSClaimsProvider' threw an exception.]
lambda_method(Closure , IBuilderContext ) +81
Microsoft.Practices.ObjectBuilder2.<>c__DisplayClass1.<GetBuildMethod>b__0(IBuilderContext context) +35
Microsoft.Practices.ObjectBuilder2.DynamicMethodBuildPlan.BuildUp(IBuilderContext context) +10
Microsoft.Practices.ObjectBuilder2.BuildPlanStrategy.PreBuildUp(IBuilderContext context) +198
Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context) +209
Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, Object existing, String name, IEnumerable`1 resolverOverrides) +165
[ResolutionFailedException: Resolution of the dependency failed, type = "Plastin.Common.Security.IClaimsProvider", name = "(none)".
Exception occurred while: Calling constructor Plastin.Common.Security.ADLDSClaimsProvider().
Exception is: TypeInitializationException - The type initializer for 'Plastin.Common.Security.ADLDSClaimsProvider' threw an exception.
-----------------------------------------------
At the time of the exception, the container was:
Resolving Plastin.Common.Security.ADLDSClaimsProvider,(none) (mapped from Plastin.Common.Security.IClaimsProvider, (none))
Calling constructor Plastin.Common.Security.ADLDSClaimsProvider()
]
Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, Object existing, String name, IEnumerable`1 resolverOverrides) +329
Microsoft.Practices.Unity.UnityContainer.Resolve(Type t, String name, ResolverOverride[] resolverOverrides) +15
Microsoft.Practices.Unity.UnityContainerExtensions.Resolve(IUnityContainer container, ResolverOverride[] overrides) +72
Plastin.Common.Security.AuthenticationManager.Authenticate(String resourceName, ClaimsPrincipal incomingPrincipal) +149
Plastin.Portal.MvcApplication.Application_PostAuthenticateRequest() +70
[TargetInvocationException: Exception has been thrown by the target of an invocation.]
System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) +0
System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments) +87
System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) +101
System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters) +21
System.Web.Util.ArglessEventHandlerProxy.Callback(Object sender, EventArgs e) +56
System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +141
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +69
Finally we fixed this issue and my apologies I am getting late to answer this question. After lots of debugging we identified that our web application was throwing this error while getting members of ADLDS group. It was unusual as same application was working on other server. So we decided to captured network traffic using Wireshark. Wireshark capture indicated that connectivity between LDAP server and application server was blocked over SMB port 445. So we get our Network team to open port 445 which fixed the issue.
This error seems very generic error and could be other reasons for this error in your scenario but using network traffic capturing tool (like wireshark) at early stage of investigation might help you to troubleshoot these kind of issue quickly.
I added the provider via nuget console Install-Package MvcSiteMapProvider.MVC4.
The install looked good:
Successfully added 'MvcSiteMapProvider.MVC4 4.6.22' to XYZ.
When I execute the application I get this error message any suggestions on troubling shooting?
Server Error in '/XYZ' Application.
Could not load file or assembly 'MvcSiteMapProvider, Version=4.6.22.0, Culture=neutral, PublicKeyToken=1923abe4657913cc' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
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.IO.FileLoadException: Could not load file or assembly 'MvcSiteMapProvider, Version=4.6.22.0, Culture=neutral, PublicKeyToken=1923abe4657913cc' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
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.
Assembly Load Trace: The following information can be helpful to determine why the assembly 'MvcSiteMapProvider, Version=4.6.22.0, Culture=neutral, PublicKeyToken=1923abe4657913cc' could not be loaded.
WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].
Stack Trace:
[FileLoadException: Could not load file or assembly 'MvcSiteMapProvider, Version=4.6.22.0, Culture=neutral, PublicKeyToken=1923abe4657913cc' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)]
System.Reflection.CustomAttribute._CreateCaObject(RuntimeModule pModule, IRuntimeMethodInfo pCtor, Byte** ppBlob, Byte* pEndBlob, Int32* pcNamedArgs) +0
System.Reflection.CustomAttribute.CreateCaObject(RuntimeModule module, IRuntimeMethodInfo ctor, IntPtr& blob, IntPtr blobEnd, Int32& namedArgs) +38
System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeModule decoratedModule, Int32 decoratedMetadataToken, Int32 pcaCount, RuntimeType attributeFilterType, Boolean mustBeInheritable, IList derivedAttributes, Boolean isDecoratedTargetSecurityTransparent) +571
System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeAssembly assembly, RuntimeType caType) +103
System.Reflection.RuntimeAssembly.GetCustomAttributes(Boolean inherit) +37
Owin.Loader.DefaultLoader.SearchForStartupAttribute(String friendlyName, IList1 errors, Boolean& conflict) +106
Owin.Loader.DefaultLoader.GetDefaultConfiguration(String friendlyName, IList1 errors) +46
Owin.Loader.DefaultLoader.LoadImplementation(String startupName, IList1 errorDetails) +75
Owin.Loader.DefaultLoader.Load(String startupName, IList1 errorDetails) +21
Microsoft.Owin.Host.SystemWeb.OwinBuilder.GetAppStartup() +115
Microsoft.Owin.Host.SystemWeb.OwinHttpModule.InitializeBlueprint() +28
System.Threading.LazyInitializer.EnsureInitializedCore(T& target, Boolean& initialized, Object& syncLock, Func`1 valueFactory) +115
Microsoft.Owin.Host.SystemWeb.OwinHttpModule.Init(HttpApplication context) +106
System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers) +534
System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context) +172
System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +352
System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +296
[HttpException (0x80004005): Could not load file or assembly 'MvcSiteMapProvider, Version=4.6.22.0, Culture=neutral, PublicKeyToken=1923abe4657913cc' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)]
System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +9947380
System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +101
System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +261
Assuming you actually have the Nuget package installed, that error is most usually an issue with binding redirects in your Web.config. You can try to resolve the issue manually, by finding the appropriate binding redirect and making sure the version numbers are correct. I find it easier to just force remove the package and reinstall it. That will usually fix the problem:
> uninstall-package MvcSiteMapProvider.MVC4 -Force
> install-package MvcSiteMapProvider.MVC4
Make sure your Web.config is not open in your documents pane, or if it is, that you allow it to reload. If you save over it without refreshing from the filesystem after installing a Nuget package, you'll often bork things like binding redirects, leading to this issue.
I have deployed WCF service on IIS 7 (Windows Server 2008), but I'm getting a strange error:
WebHost failed to process a request.
Sender Information: System.ServiceModel.Activation.HostedHttpRequestAsyncResult/31364015
Exception: System.ServiceModel.ServiceActivationException: The service '/WCFService.svc' cannot be activated due to an exception during compilation. The exception message is: Could not load file or assembly 'IHEC.WS.dll, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG)). ---> System.Configuration.ConfigurationErrorsException: Could not load file or assembly 'IHEC.WS.dll, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG)) ---> System.IO.FileLoadException: Could not load file or assembly 'IHEC.WS.dll, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG))
File name: 'IHEC.WS.dll, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' ---> System.IO.FileLoadException: Could not load file or assembly 'IHEC.WS.dll' or one of its dependencies. The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG))
File name: 'IHEC.WS.dll'
WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].
at System.Reflection.Assembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection)
at System.Reflection.Assembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection)
at System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection)
at System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection)
at System.Reflection.Assembly.Load(String assemblyString)
at System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective)
--- End of inner exception stack trace ---
at System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective)
at System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory()
at System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai)
at System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig)
at System.Web.Compilation.WebDirectoryBatchCompiler..ctor(VirtualDirectory vdir)
at System.Web.Compilation.BuildManager.BatchCompileWebDirectoryInternal(VirtualDirectory vdir, Boolean ignoreErrors)
at System.Web.Compilation.BuildManager.BatchCompileWebDirectory(VirtualDirectory vdir, VirtualPath virtualDir, Boolean ignoreErrors)
at System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath)
at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile)
at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile)
at System.Web.Compilation.BuildManager.GetVPathBuildResult(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile)
at System.Web.Compilation.BuildManager.GetCompiledCustomString(String virtualPath)
at System.ServiceModel.ServiceHostingEnvironment.HostingManager.GetCompiledCustomString(String normalizedVirtualPath)
at System.ServiceModel.ServiceHostingEnvironment.HostingManager.CreateService(String normalizedVirtualPath)
at System.ServiceModel.ServiceHostingEnvironment.HostingManager.ActivateService(String normalizedVirtualPath)
at System.ServiceModel.ServiceHostingEnvironment.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath)
--- End of inner exception stack trace ---
at System.ServiceModel.AsyncResult.End[TAsyncResult](IAsyncResult result)
at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult result)
Process Name: w3wp
Process ID: 2616
The strange is, that the file IHEC.WS.dll is there in the bin directory.
Moving OP's own answer/comment to Answers
meanwhile I have solved this problem. When I deploy a project with
using Web Deployment Project and set 'Allow this precompiled site to
be updateble' it works fine. But I don't know why
I am getting the below error when i call "NServiceBus.Host.exe". The issue appears to be itextsharp.dll. I've read that i can use
"Configure.With(AllAssemblies.Except("itextsharp.dll"))... // rest of your config"
But i'm using the following sample and not sure where to add this property.
http://docs.particular.net/samples/web/asp-mvc-application/
#
Unhandled Exception: Magnum.StateMachine.StateMachineException: Exception occurr
ed in Topshelf.Internal.ServiceController1[[NServiceBus.Host.Internal.GenericHo
st, NServiceBus.Host, Version=2.6.0.1504, Culture=neutral, PublicKeyToken=9fc386
479f8a226c]] during state Initial while handling OnStart ---> System.Exception:
Exception when starting endpoint, error has been logged. Reason: Could not load
file or assembly 'file:///D:\dev\MYSITE\MYSITE.EStore\EStore.Server\bin\Debug\itexts
harp.dll' or one of its dependencies. Operation is not supported. (Exception fro
m HRESULT: 0x80131515)
at NServiceBus.Host.Internal.GenericHost.Start() in d:\BuildAgent-02\work\20b
5f701adefe8f8\src\host\NServiceBus.Host\Internal\GenericHost.cs:line 90
at Magnum.StateMachine.EventActionList1.Execute(T stateMachine, Event event,
Object parameter) in :line 0
--- End of inner exception stack trace ---
Server stack trace:
at Magnum.StateMachine.ExceptionActionDictionary1.HandleException(T stateMac
hine, Event event, Object parameter, Exception exception) in :line 0
at Magnum.StateMachine.EventActionList1.Execute(T stateMachine, Event event,
Object parameter) in :line 0
at Magnum.StateMachine.State1.RaiseEvent(T instance, BasicEvent1 eevent, Ob
ject value) in :line 0
at Magnum.StateMachine.StateMachine`1.RaiseEvent(Event raised) in :line 0
at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(
IntPtr md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInCont
ext, Object[]& outArgs)
at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMes
sage msg, Int32 methodPtr, Boolean fExecuteInContext)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage req
Msg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgDa
ta, Int32 type)
at Topshelf.Internal.ServiceControllerProxy.Start()
at Topshelf.Internal.ServiceCoordinator.Start() in d:\dev\open-source\topshel
f\src\Topshelf\Internal\ServiceCoordinator.cs:line 54
at Topshelf.Internal.Hosts.ConsoleHost.Run() in d:\dev\open-source\topshelf\s
rc\Topshelf\Internal\Hosts\ConsoleHost.cs:line 53
at NServiceBus.Host.Program.Main(String[] args) in d:\BuildAgent-02\work\20b5
f701adefe8f8\src\host\NServiceBus.Host\Program.cs:line 103
When NserviceBus host starts it tries to retrieve all types from assemblies you specify.
In the sample you provide it uses NServiceBus.Configure.WithWeb() method.
This is the same as to call NServiceBus.Configure.With(AppDomain.CurrentDomain.DynamicDirectory)
You get the excpetion because "itextsharp.dll" cannot be loaded to AppDomain (this is done by calling Assembly.LoadFrom(file.FullName) method).
To fix the issue, you may manually specify assemblies you need to scan by using one of NServiceBus.Configure.With() overloads.
Note: This is a solved problem, but I just spend 4 hours at this issue, so I wanted to share the solution.
When I attempt to access a WCF service, the service never responds, and the event log shows the following:
An unhandled exception occurred and
the process was terminated.
Application ID: DefaultDomain
Process ID: 3180
Exception:
System.Runtime.Serialization.SerializationException
Message: Unable to find assembly
'System.Data.SQLite, Version=1.0.66.0,
Culture=neutral,
PublicKeyToken=db937bc2d44ff139'.
StackTrace: at
System.Runtime.Serialization.Formatters.Binary.BinaryAssemblyInfo.GetAssembly()
at
System.Runtime.Serialization.Formatters.Binary.ObjectReader.GetType(BinaryAssemblyInfo
assemblyInfo, String name) at
System.Runtime.Serialization.Formatters.Binary.ObjectMap..ctor(String
objectName, String[] memberNames,
BinaryTypeEnum[] binaryTypeEnumA,
Object[] typeInformationA, Int32[]
memberAssemIds, ObjectReader
objectReader, Int32 objectId,
BinaryAssemblyInfo assemblyInfo,
SizedArray assemIdToAssemblyTable)
at
System.Runtime.Serialization.Formatters.Binary._BinaryParser.ReadObjectWithMapTyped(BinaryObjectWithMapTyped
record) at
System.Runtime.Serialization.Formatters.Binary._BinaryParser.ReadObjectWithMapTyped(BinaryHeaderEnum
binaryHeaderEnum) at
System.Runtime.Serialization.Formatters.Binary.__BinaryParser.Run()
at
System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(HeaderHandler
handler, __BinaryParser serParser,
Boolean fCheck, Boolean
isCrossAppDomain, IMethodCallMessage
methodCallMessage) at
System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream
serializationStream, HeaderHandler
handler, Boolean fCheck, Boolean
isCrossAppDomain, IMethodCallMessage
methodCallMessage) at
System.Runtime.Remoting.Channels.CrossAppDomainSerializer.DeserializeObject(MemoryStream
stm) at
System.AppDomain.Deserialize(Byte[]
blob) at
System.AppDomain.UnmarshalObject(Byte[]
blob)
Solution
In my case, the problem ended up being a simple incorrect database path. However, the error message in no way reflects the actual cause, so YMMV.
The reason the "bad connection string" exception didn't make it to the event log seems related to this KB article. If the connection string isn't your problem, then your best course may be to follow the steps in this article, which will cause IIS to write exceptions to the event log.