commands/box/repackage: better error if box not found

lib/vagrant/errors.rb

@@ -192,6 +192,10 @@ module Vagrant
       error_key(:box_not_found_with_provider)
     end
 
+    class BoxNotFoundWithProviderAndVersion < VagrantError
+      error_key(:box_not_found_with_provider_and_version)
+    end
+
     class BoxProviderDoesntMatch < VagrantError
       error_key(:box_provider_doesnt_match)
     end

plugins/commands/box/command/repackage.rb

@@ -23,9 +23,10 @@ module VagrantPlugins
           # Verify the box exists that we want to repackage
           box = @env.boxes.find(box_name, box_provider, "= #{box_version}")
           if !box
-            raise Vagrant::Errors::BoxNotFound,
-              :name => box_name,
-              :provider => box_provider
+            raise Vagrant::Errors::BoxNotFoundWithProviderAndVersion,
+              name: box_name,
+              provider: box_provider.to_s,
+              version: box_version
           end
 
           # Repackage the box

templates/locales/en.yml

@@ -443,6 +443,10 @@ en:
         the box are shown below:
 
         %{providers}
+      box_not_found_with_provider_and_version: |-
+        The box '%{name}' (v%{version}) with provider '%{provider}'
+        could not be found. Please double check and try again. You
+        can see all the boxes that are installed with `vagrant box list`.
       box_provider_doesnt_match: |-
         The box you attempted to add doesn't match the provider you specified.