Conservative approach to supported versions of Python 3.4 and asyncio.ensure_future, Ref. #1269

gns3server/controller/project.py

@@ -36,7 +36,7 @@ from .udp_link import UDPLink
 from ..config import Config
 from ..utils.path import check_path_allowed, get_default_project_directory
 from ..utils.asyncio.pool import Pool
-from ..utils.asyncio import locked_coroutine
+from ..utils.asyncio import locked_coroutine, asyncio_ensure_future
 from .export_project import export_project
 from .import_project import import_project
 from ..compute.iou.utils.application_id import get_next_application_id
@@ -867,7 +867,7 @@ class Project:
             # Start all in the background without waiting for completion
             # we ignore errors because we want to let the user open
             # their project and fix it
-            asyncio.ensure_future(self.start_all())
+            asyncio_ensure_future(self.start_all())
 
     @asyncio.coroutine
     def wait_loaded(self):