RequireUpdatedDatabaseHttpModule crashes on start

[George Doubinski]

Howdy,

after following instructions and installing FunnelWeb "as is" from the dev, I immediately face the problem I cannot get my head around. It just wouldn't start and generates YSOD:

Stack Trace: 

[NullReferenceException: Object reference not set to an instance of an object.] FunnelWeb.Web.Application.RequireUpdatedDatabaseHttpModule.ApplicationBeginRequest(Object sender, EventArgs e) in c:\Source\FunnelWeb\src\FunnelWeb.Web\Application\RequireUpdatedDatabaseHttpModule.cs:18 System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +79 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +269

---

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

The line generating kaboom is:

if (!DependencyResolver.Current.GetService<IDatabaseUpgradeDetector>().UpdateNeeded()) return;

Everything runs fine in my dev. environment. What am I missing?

Any help would be appreciated

Cheers

George

[Aaron Powell]

Do you have a database instance setup and the connection string valid?

 

Aaron Powell
MVP - Internet Explorer (Development) | FunnelWeb Team Member

http://apowell.me | http://twitter.com/slace | Skype: aaron.l.powell | Github | BitBucket

[George Doubinski]

Yes I do and yes it's valid. (or so I think :). Is that the expected error when string is not valid? I tested it locally (supplying invalid or no connection string at all) and nice page is displayed inviting me to fix the problem in my.config file. I suspect something is missing on the server but I'm not sure what and where to start.

[George Doubinski]

Crickets...

[Aaron Powell]

I’ve got no idea, hence why I didn’t reply

 

Aaron Powell
MVP - Internet Explorer (Development) | FunnelWeb Team Member

http://apowell.me | http://twitter.com/slace | Skype: aaron.l.powell | Github | BitBucket

 

[George Doubinski]

It looks like either 

DependencyResolver.Current

or 

DependencyResolver.Current.GetService<IDatabaseUpgradeDetector>()

returns null.

Would it help to find out which one or still no clue in either case?

 
--

George

[Aaron Powell]

Either of them being null is problematic, DependencyResolver is a MVC framework feature so if that’s null there’s a big problem and f the db upgrader is null then the dependencies haven’t loaded which is also a problem.

 

Are you:

-          On a shared or dedicated host?

-          Have you ensured .NET 4.0 is installed?

-          Is the app pool set correctly for .NET 4.0?

-          Have you got MVC3 installed?

[George Doubinski]

• It's my own server
• .NET 4.0 is installed
• Pool is set to .NET 4.0 Integrated
• I thought it's bin-deployed so installation is not required. But just in case, I installed MVC 3 with the same outcome

I understand that either null is a major problem. What I'm trying to get an advice on is what would be the quickest way to find out what's failing, i.e. what causes MVC framework failure or dependency load failure. I can modify the code as required, just need few pointers where to start!

[Aaron Powell]

I don’t have a clue where to start, event viewer may have something if a dependency is failing to load but that’s a wild guess

[George Doubinski]

Ahm, well, this is embarrassing...

Somehow I managed to miss Global.asax when deploying. That will teach me not to copy by hand next time.

Thank you for your help!

[alirıza adıyahşi]

Dis you solve problem and how?

[George Doubinski]

As per my latest reply: "Somehow I managed to miss Global.asax when deploying"

That was it - missed that file. 

I think I've seen some odd installations of .NET 4 (like beta) causing problems as well, it's worth to re-run .NET 4 install to make sure it's clean.