diff --git a/gns3server/controller/export_project.py b/gns3server/controller/export_project.py index 1cc93a12..6f3f6556 100644 --- a/gns3server/controller/export_project.py +++ b/gns3server/controller/export_project.py @@ -191,3 +191,5 @@ def _export_images(project, image, z): arcname = os.path.join("images", directory, os.path.basename(image)) z.write(path, arcname) break + else: + raise aiohttp.web.HTTPConflict(text="Topology could not be exported because the image {} is not available. If you use multiple server, we need a copy of the image on the main server.".format(path))