From c2bfa215c0d4b246ce3e1c626e8a8f0239021518 Mon Sep 17 00:00:00 2001
From: Damian Mee <damian.wasilewski@gmail.com>
Date: Tue, 5 Aug 2014 00:20:35 +0200
Subject: [PATCH] fix(module): info about missing exchange module added

---
 lib/trader.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/trader.js b/lib/trader.js
index ee181f71..48d4c5f5 100644
--- a/lib/trader.js
+++ b/lib/trader.js
@@ -21,7 +21,12 @@ var Trader = module.exports = function (db) {
 };
 
 Trader.prototype._findExchange = function (name) {
-  return require('lamassu-' + name);
+  try {
+    return require('lamassu-' + name);
+
+  } catch(_) {
+    throw new Error(name + ' module is not installed. Try running `npm install --save lamassu-' + name + '` first');
+  }
 };
 
 Trader.prototype._findTicker = function (name) {