title: Error 3004, mapping error with EF
body: <p>Ok since my of my issues have been resolved,I was flying through the code, until now: I've now run into one I cant even find anything on Google for it. Here's the text of the error:</p>
  
  <blockquote>
    <p>Error 3004: Problem in mapping</p>
    
    <blockquote>
      <p>fragments starting at line 937:No
      mapping specified for properties
      StoreItem.ItemPrice in Set StoreItems.
      An Entity with Key (PK) will not
      round-trip when:   Entity is type
      [psychoco_GodsCreationTaxidermyModel.StoreItem]     F:\Projects\GodsCreationTaxidermySVN\GodsCreationTaxidermy.Data\GCTEntities.edmx    938 945 GodsCreationTaxidermy.Data</p>
    </blockquote>
  </blockquote>
  
  <p>Of you need any code samples let me know</p>