gnosis--get-deck-name: Improve error message

Make it easier for users to understand what is going when they create
their first note.

1 files changed, 1 insertions, 1 deletions

diff --git a/gnosis.el b/gnosis.el
index 7f4f1de..b8d3467 100644
--- a/gnosis.el
+++ b/gnosis.el
@@ -455,7 +455,7 @@ Set SPLIT to t to split all input given."
 (defun gnosis--get-deck-name (&optional id)
   "Get deck name for ID, or prompt for deck name when ID is nil."
   (when (equal (gnosis-select 'name 'decks) nil)
-    (error "No decks found"))
+    (error "No decks found.  Please create a deck first with `gnosis-add-deck'"))
   (if id
       (gnosis-get 'name 'decks `(= id ,id))
     (funcall gnosis-completing-read-function "Deck: " (gnosis-select 'name 'decks))))