Could not load file or assembly 'file://c:\windows\system32\inetsrv\Sitecore.Analytics.Model.Entities.ContactPersonalInfo' or one of its dependencies

Question

I'm using Sitecore 8.1 Original Release and am having problems getting my contact stuff to work properly. Here's my code:

var repository = new ContactRepository();
contact = repository.CreateContact(System.Guid.NewGuid());

When I try to execute this code, I get this error:

Could not load file or assembly 'file://c:\windows\system32\inetsrv\Sitecore.Analytics.Model.Entities.ContactPersonalInfo' or one of its dependencies. The system cannot find the file specified."

This is the same configuration that I've been using for several months, however, I've never tried to create a contact before. I've always just let Sitecore create a contact for me. This error message doesn't make sense, because I'm running my Sitecore instance in a completely separate location (different drive and everything). I've tried copying the Sitecore.Analytics.Model.dll to the specified directory, but I didn't have any luck.

Questions:

1. What could be causing Sitecore to look in such an odd place for the DLL when I call the create function?
2. How can I fix this?

Answer 1

Error Explanation:

As Error says the type is missing in this assembly as shown and also this has been replaced by an Interface IContactPersonalInfo Interface is implemented in 'Sitecore.Analystics.Mode.Generated.ContactPersonalInfo’

Cross Check:

1. Please verify you have this in Sitecore configuration through /sitecore/admin/showconfig.aspx patched up thr ‘Sitecore.Analytics.Model.Config’ It states Interface& its implementation.

2. Please verify you have Sitecore.Analytics.Model.dll in your csproj with appropriate version. Follow these links if old dll is still being used

   Link1 Link2

Answer 2

Couple of points to check:

1. Check how are you referencing the Sitecore.Analytics.Model.dll in your project
2. Make sure that this assembly is present in your solution (website) bin directory
3. You can use the Find in Files feature of i.e. Notepad++ to lookup for references of Sitecore.Analytics.Model* in all *.csproj files of your project to understand how it is referenced.

Answer 3

The issue that you are seeing is because you are trying to instantiate a new ContactRepository().

The appropriate way to reference the repository is by creating the object through Sitecore's Configuration Factory.

private ContactRepository _repository = Sitecore.Configuration.Factory.CreateObject("tracking/contactRepository", true) as ContactRepository;