I'm running (or better "attempting" to run) my site built with mojoPortal in a hosted environment that does not allow access to C:\Windows\Temp.  I can understand why, and I attempted to resolve (by adding tempDirectory = "somewhere in my file structure" to the compilation tag in web.config like this:

<compilation tempDirectory="d:\hosting\member\xxx\TEMP" debug="false" defaultLanguage="C#">

for some reason, I'm still getting errors when the site is loading indicating that it is still trying to utilize C:\Windows\Temp.  Am I missing something???

frustrated, Daniel

Thanks.  I removed the change to web.config.  Here is the error (the name of the file changes after refreshing a few times):

Server Error in '/' Application.
--------------------------------------------------------------------------------

Could not find file 'C:\Windows\TEMP\f9kyc2vs.dll'.
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.FileNotFoundException: Could not find file 'C:\Windows\TEMP\f9kyc2vs.dll'.

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:

[FileNotFoundException: Could not find file 'C:\Windows\TEMP\f9kyc2vs.dll'.]
System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) +305
System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy) +1162
System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share) +66
Microsoft.CSharp.CSharpCodeGenerator.FromFileBatch(CompilerParameters options, String[] fileNames) +5237140
Microsoft.CSharp.CSharpCodeGenerator.FromSourceBatch(CompilerParameters options, String[] sources) +493
Microsoft.CSharp.CSharpCodeGenerator.System.CodeDom.Compiler.ICodeCompiler.CompileAssemblyFromSourceBatch(CompilerParameters options, String[] sources) +53
System.CodeDom.Compiler.CodeDomProvider.CompileAssemblyFromSource(CompilerParameters options, String[] sources) +23
System.Xml.Serialization.Compiler.Compile(Assembly parent, String ns, XmlSerializerCompilerParameters xmlParameters, Evidence evidence) +578
System.Xml.Serialization.TempAssembly.GenerateAssembly(XmlMapping[] xmlMappings, Type[] types, String defaultNamespace, Evidence evidence, XmlSerializerCompilerParameters parameters, Assembly assembly, Hashtable assemblies) +1902
System.Xml.Serialization.TempAssembly..ctor(XmlMapping[] xmlMappings, Type[] types, String defaultNamespace, String location, Evidence evidence) +74
System.Xml.Serialization.XmlSerializer.GenerateTempAssembly(XmlMapping xmlMapping, Type type, String defaultNamespace) +105
System.Xml.Serialization.XmlSerializer..ctor(Type type, String defaultNamespace) +489
System.Xml.Serialization.XmlSerializer..ctor(Type type) +6
mojoPortal.Business.SerializationHelper.SerializeToString(Object obj) +68
mojoPortal.Web.WebTaskManager.QueueTask() +575
mojoPortal.Web.WebTaskManager.StartOrResumeTasks(Boolean appWasRestarted) +104
mojoPortal.Web.Global.Application_Start(Object sender, EventArgs e) +316

[HttpException (0x80004005): Could not find file 'C:\Windows\TEMP\f9kyc2vs.dll'.]
System.Web.HttpApplicationFactory.EnsureAppStartCalledForIntegratedMode(HttpContext context, HttpApplication app) +2723014
System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers) +128
System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context) +188
System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +295
System.Web.HttpApplicationFactory.GetPipelineApplicationInstance(IntPtr appContext, HttpContext context) +56
System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +231

[HttpException (0x80004005): Could not find file 'C:\Windows\TEMP\f9kyc2vs.dll'.]
System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +8890735
System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +85
System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +333

--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:2.0.50727.3074; ASP.NET Version:2.0.50727.3074  

Thanks, Joe!  The site appears to be working now.  It's done this before and then reverted to the errors below after a few minutes, so I'm figuratively holding my breath at this point (but it's been working through 10 minutes of steady refreshes).  

I'll send an update in an hour or so if it is still up.  

Thanks, again!  Your beer is on the way!  

Daniel

Hi again Joe.

didn't you see the post?

Hi again.

I used that solution and it does avoid creating dll files in windows\temp and it does create dlls in /data folder, but the same error happens there too, dll files get deleted from the /data folder as well.

by the solution in the post, I meant:

I think you should try to call the CanDeserialize before serialization/deserialization. If it fails maybe you should create another XmlSerializer instance. I don't know if this is the best approach, but it should work.

Another workaround would be to surrond the serialization/deserialization source code with a trycatch and create a new xmlserializer if you do have a FileNotFoundException. It's a bit of a nasty workaround. I don't like it much, but it

thank you very much.

Hi joe, the client was struggling with this error and I was busy and it's not resolved yet.

I will be thankful if you can help.

check this:

see? the error does no happen in DeserializeFromString method. it happens in SerializeToString method!

:|       ....... ! I have no idea...!

( I was thinking about bypassing the error by using a custom error page that check the last exception and redirects site visitors to previous page, and hopefully, because it randomly happens, the visitor will not notice the error. but it does not completely solve it and also the admins will have trouble with it, because they will use pages that postback, ..... I wish there is a solution to this error.)