From 9a7a9f41aa526694bdfd7b3c3996b2f63f39edce Mon Sep 17 00:00:00 2001
From: Julien Duponchelle <julien@gns3.net>
Date: Wed, 21 Dec 2016 09:33:44 +0100
Subject: [PATCH] Catch an error when we can't create the IOU directory

Fix #846
---
 gns3server/compute/base_manager.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/gns3server/compute/base_manager.py b/gns3server/compute/base_manager.py
index 84451138..bec1fce7 100644
--- a/gns3server/compute/base_manager.py
+++ b/gns3server/compute/base_manager.py
@@ -481,7 +481,10 @@ class BaseManager:
         :returns: Array of hash
         """
 
-        return list_images(self._NODE_TYPE)
+        try:
+            return list_images(self._NODE_TYPE)
+        except OSError as e:
+            raise aiohttp.web.HTTPConflict(text="Can not list images {}".format(e))
 
     def get_images_directory(self):
         """