From 6cd451b4fe0fd28994ad6c5a0f282dc47d2f7142 Mon Sep 17 00:00:00 2001
From: Jakub Hampl <kopomir@gmail.com>
Date: Mon, 15 Oct 2018 16:24:16 +0100
Subject: Stuff for Mapbox 50

---
 src/js/main.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/js')

diff --git a/src/js/main.js b/src/js/main.js
index e56533c..fb7d44f 100644
--- a/src/js/main.js
+++ b/src/js/main.js
@@ -362,7 +362,7 @@ export function registerPorts(elmApp, settings = {}) {
       }
     });
   } else {
-    throw new Error(`Expected Elm App to expose ${elmApp.ports[options.outgoingPort]} port.`);
+    throw new Error(`Expected Elm App to expose ${options.outgoingPort} port. Please add https://github.com/gampleman/elm-mapbox/blob/master/examples/MapCommands.elm to your project and import it from your Main file.`);
   }
 
   return elmApp;
-- 
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