From f0ca13c88a0c711e3a78d25dc4041c70da5aa791 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Valim?= <jose.valim@dashbit.co>
Date: Fri, 6 Oct 2023 21:23:45 +0300
Subject: [PATCH] Include explicit kino requirement on error message (#2260)

---
 lib/livebook/runtime/definitions.ex | 8 +++++++-
 lib/livebook_web/live/output.ex     | 7 +++++--
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/lib/livebook/runtime/definitions.ex b/lib/livebook/runtime/definitions.ex
index e1c6cd7f7..edf4bbb11 100644
--- a/lib/livebook/runtime/definitions.ex
+++ b/lib/livebook/runtime/definitions.ex
@@ -1,7 +1,13 @@
 defmodule Livebook.Runtime.Definitions do
+  @kino_requirement "~> 0.11.0"
+
+  def kino_requirement do
+    @kino_requirement
+  end
+
   kino = %{
     name: "kino",
-    dependency: %{dep: {:kino, "~> 0.11.0"}, config: []}
+    dependency: %{dep: {:kino, @kino_requirement}, config: []}
   }
 
   kino_vega_lite = %{
diff --git a/lib/livebook_web/live/output.ex b/lib/livebook_web/live/output.ex
index 1fb9d9af7..e1f97cab7 100644
--- a/lib/livebook_web/live/output.ex
+++ b/lib/livebook_web/live/output.ex
@@ -410,9 +410,12 @@ defmodule LivebookWeb.Output do
   end
 
   defp render_output(output, %{}) do
+    req = Livebook.Runtime.Definitions.kino_requirement()
+
     render_error_message("""
-    Unknown output format: #{inspect(output)}. If you're using Kino,
-    you may want to update Kino and Livebook to the latest version.
+    Unknown output format: #{inspect(output)}. You may want to explicitly \
+    add {:kino, "#{req}"} as a notebook dependency or update to the latest \
+    Livebook.
     """)
   end