I am trying to upgrade a client site from 6.1.2 to 6.2.5 but keep getting the following error when the upgrader runs and I just cannot find out what is wrong. Please can someone help as I need to get this site up to the latest version and even though I have upgraded 100s of DNN sites over the years I have never seen this before. If it cannot be solved here can anyone suggest how I can get someone from DNN to look into it or how I can get paid support to resolve the problem. Thanks.

Server Error in '/' Application.
Could not load type 'DotNetNuke.Common.DotNetNukeHttpApplication' from assembly 'DotNetNuke, Version=6.2.5.24, Culture=neutral, PublicKeyToken=null'.
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.TypeLoadException: Could not load type 'DotNetNuke.Common.DotNetNukeHttpApplication' from assembly 'DotNetNuke, Version=6.2.5.24, Culture=neutral, PublicKeyToken=null'.

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:


[TypeLoadException: Could not load type 'DotNetNuke.Common.DotNetNukeHttpApplication' from assembly 'DotNetNuke, Version=6.2.5.24, Culture=neutral, PublicKeyToken=null'.]
   System.Reflection.RuntimeAssembly.GetType(RuntimeAssembly assembly, String name, Boolean throw , Boolean ignoreCase, ObjectHandleOnStack type) +0
   System.Reflection.RuntimeAssembly.GetType(String name, Boolean throw , Boolean ignoreCase) +67
   System.Reflection.Assembly.GetType(String name) +14
   System.Web.Compilation.BaseTemplateBuildProvider.GetGeneratedType(CompilerResults results, Boolean useDelayLoadTypeIfEnabled) +96
   System.Web.Compilation.BaseTemplateBuildProvider.GetGeneratedType(CompilerResults results) +6
   System.Web.Compilation.BuildProvider.CreateBuildResult(CompilerResults results) +72
   System.Web.Compilation.BuildProvider.GetBuildResult(CompilerResults results) +16
   System.Web.Compilation.ApplicationBuildProvider.GetGlobalAsaxBuildResult(Boolean isPrecompiledApp) +9118863
   System.Web.Compilation.BuildManager.CompileGlobalAsax() +44
   System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() +265

[HttpException (0x80004005): Could not load type 'DotNetNuke.Common.DotNetNukeHttpApplication' from assembly 'DotNetNuke, Version=6.2.5.24, Culture=neutral, PublicKeyToken=null'.]
   System.Web.Compilation.BuildManager.ReportTopLevelCompilationException() +62
   System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() +421
   System.Web.Compilation.BuildManager.CallAppInitializeMethod() +31
   System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException) +691

[HttpException (0x80004005): Could not load type 'DotNetNuke.Common.DotNetNukeHttpApplication' from assembly 'DotNetNuke, Version=6.2.5.24, Culture=neutral, PublicKeyToken=null'.]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +9090876
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +97
   System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +256


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.272



 

 

Hi Sebastian

Yes I did that and did the upgrade the same way I have done for many other sites but this one fails. In fact I even tried to get the PowerDNN (where the site is hosted) support team to do the upgrade for me and they got the same error and said they have never seen this before. I did wonder if I turn debug mode on if that would provide any more info but not really sure if this would help.

Nathan

I am a little confused by your point 2. You say to install the symbol files for the new version. Do you mean to do this before trying to do the upgrade because the upgrade itself is what is failing as soon as it starts the installation process. Would I not be better to install the Symbol files for the current version before I try and upload or will that not help?