For my project I need a more complex version of the products module, so I just extended it with a couple of fields. I've then Imported the module in my project and all seemed to work well. But when I go to administration -> roles and I then try to edit the permissions on a role, I get the error: Could not find the specified key "Products" or class id "KNLTB.Modules.Products.ProductsResources".
Normally I suspect that there was a resource key missing, so I just added the following key in my resource file.
public string Products
/// Title of the Products