1 files changed, 8 insertions, 0 deletions
diff --git a/app/services/projects/transfer_service.rb b/app/services/projects/transfer_service.rb
index 60e5b7e2639..0fb70feec86 100644
--- a/app/services/projects/transfer_service.rb
+++ b/app/services/projects/transfer_service.rb
@@ -55,10 +55,18 @@ module Projects
         raise TransferError.new(s_('TransferProject|Project cannot be transferred, because tags are present in its container registry'))
       end
 
+      if project.has_packages?(:npm) && !new_namespace_has_same_root?(project)
+        raise TransferError.new(s_("TransferProject|Root namespace can't be updated if project has NPM packages"))
+      end
+
       attempt_transfer_transaction
     end
     # rubocop: enable CodeReuse/ActiveRecord
 
+    def new_namespace_has_same_root?(project)
+      new_namespace.root_ancestor == project.namespace.root_ancestor
+    end
+
     def attempt_transfer_transaction
       Project.transaction do
         project.expire_caches_before_rename(@old_path)