'name' is an invalid keyword argument for 'maasng.boot_source_present'.

[shangxdy]

The errors are shown as following:

Warnings:
'name' is an invalid keyword argument for 'maasng.boot_source_present'. If you were trying to pass additional data to be used in a template context, please populate 'context' with 'key: value' pairs. Your approach will work until Salt Fluorine is out. Please update your state files. Name: maas_region_boot_source_resources_mirror - Function: maasng.boot_source_present - Result: Clean Started: - 21:34:01.343567 Duration: 337.643 ms
Warnings:
'name' is an invalid keyword argument for 'maasng.boot_sources_selections_present'. If you were trying to pass additional data to be used in a template context, please populate 'context' with 'key: value' pairs. Your approach will work until Salt Fluorine is out. Please update your state files. Name: maas_region_boot_sources_selection_xenial - Function: maasng.boot_sources_selections_present - Result: Clean Started: - 21:34:01.681904 Duration: 615.973 ms

And my definition is:

region:
boot_sources:
resources_mirror:
url: "http://images.maas.io/ephemeral-v3/daily/"
keyring_file: /usr/share/keyrings/ubuntu-cloudimage-keyring.gpg
boot_sources_selections:
xenial:
url: "http://images.maas.io/ephemeral-v3/daily/"
os: "ubuntu"
release: "xenial"
arches:
- "amd64"
subarches:
- "generic"
- "ga-16.04"
- "hwe-16.04"
labels: '"*"'

What's wrong with the definition or it is a bug?
I'll appreciate your help very much.

BTW: the version of salt is:
Salt Version:
Salt: 2016.11.9

Dependency Versions:
cffi: Not Installed
cherrypy: Not Installed
dateutil: 2.4.2
docker-py: Not Installed
gitdb: 0.6.4
gitpython: 1.0.1
ioflo: Not Installed
Jinja2: 2.8
libgit2: Not Installed
libnacl: Not Installed
M2Crypto: 0.21.1
Mako: 1.0.3
msgpack-pure: Not Installed
msgpack-python: 0.4.6
mysql-python: Not Installed
pycparser: Not Installed
pycrypto: 2.6.1
pycryptodome: Not Installed
pygit2: Not Installed
Python: 2.7.12 (default, Dec 4 2017, 14:50:18)
python-gnupg: Not Installed
PyYAML: 3.11
PyZMQ: 15.2.0
RAET: Not Installed
smmap: 0.9.0
timelib: Not Installed
Tornado: 4.2.1
ZMQ: 4.1.4

System Versions:
dist: Ubuntu 16.04 xenial
machine: x86_64
release: 4.15.0-24-generic
system: Linux
version: Ubuntu 16.04 xenial