Check for uBridge version and catch uBridge errors.

gns3server/web/route.py

@@ -26,6 +26,7 @@ import traceback
 log = logging.getLogger(__name__)
 
 from ..modules.vm_error import VMError
+from ..ubridge.ubridge_error import UbridgeError
 from .response import Response
 from ..crash_report import CrashReport
 from ..config import Config
@@ -179,7 +180,7 @@ class Route(object):
                     response = Response(request=request, route=route)
                     response.set_status(e.status)
                     response.json({"message": e.text, "status": e.status})
-                except VMError as e:
+                except (VMError, UbridgeError) as e:
                     log.error("VM error detected: {type}".format(type=type(e)), exc_info=1)
                     response = Response(request=request, route=route)
                     response.set_status(409)