How do I setup a really simple WCF Data service and entity model that works?

Ok this is going to seem really daft but but essentially this is what i'm trying to do in a nutshell ... http://msdn.microsoft.com/en-us/library/dd465161.aspx

The problem is that when I create the WCF Data Service and browse to it everything looks good at the root level and as soon as I leave the root I get http 500 errors.

I get no decent information开发者_开发知识库 on how to fix the error or what went wrong it says "Internal server error" ... not helpful.

So my question is sort of twofold ... How do I setup a simple WCF Data service that relies on an entity model then bind some simple data to a listbox or something in a WPF client?

but also ...

How do I debug those http 500 errors?

Just for clarification:

I followed the steps here ... http://msdn.microsoft.com/en-us/library/dd728275.aspx ... to create the model and service.

The root url "http://localhost/Northwind.svc" works fine.

Browsing to "http://localhost/Northwind.svc/Orders" causes a http 500.

This helps a LOT: Link

Also download fiddler you can use it to monitor requests/responses (See this)

I would start by attaching the debugger to your service when you use your browser to access it.

You might want to try a different client because there usually is a response from a service besides the 500 errorcode, but a browser only shows a 500 error page.