1 files changed, 19 insertions, 0 deletions
diff --git a/lib/gitlab/metrics/dashboard/transformers/errors.rb b/lib/gitlab/metrics/dashboard/transformers/errors.rb
new file mode 100644
index 00000000000..4d94ab098ae
--- /dev/null
+++ b/lib/gitlab/metrics/dashboard/transformers/errors.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Metrics
+    module Dashboard
+      module Transformers
+        TransformerError = Class.new(StandardError)
+
+        module Errors
+          class MissingAttribute < TransformerError
+            def initialize(attribute_name)
+              super("Missing attribute: '#{attribute_name}'")
+            end
+          end
+        end
+      end
+    end
+  end
+end