'string' does not contain a definition for 'Title' when using Razor mediator

Question

I am finding it hard to identify an error that occurs when executing Razor template building blocks. The error message is as follows:

Engine: Error in Engine.Transform
'string' does not contain a definition for 'Title'
   at CallSite.Target(Closure , CallSite , Object )
   at Tridion.Extensions.Mediators.Razor
                     .Templating.Rzr9efd1fb529654b78b3f9321ba71e33b4Template.Execute()
   at Tridion.Extensions.Mediators.Razor.RazorHandler
              .CompileAndExecute(DateTime revisionDate, Engine engine, Package package)
   at Tridion.Extensions.Mediators.Razor.RazorMediator
                          .Transform(Engine engine, Template template, Package package)

This occurs at render time and not when the handler first executes a compile on saving the TBB. We've looked at the templating code, and have not been able to find an example of dereferencing a Title property on anything that looks like a string. This suggests that the issue is with a dynamically typed variable.

So far I have attempted to identify the problematic code by selective deleting/commenting and by using @Debug() statements, all without success. Any suggestions for alternative debugging strategies would be welcome. Has anyone else experienced something similar?

Answer 1

It turns out that we were using

@Package.Page.Title

when what was needed was just

@Page.Title

To be honest, I was rather surprised to find that @Package.Page would yield a string, but that's what the problem was.

Answer 2

What type of field are you accessing? If the field type is not a Component Link/Keyword Field then the mediator won't return a dynamic item with a Title property.

From what it looks like you are accessing a single line text field and returning a string.

Check the schema to see what field type you are accessing and that should give you a bit more information.