'NoneType' object has no attribute 'server_farm_id'
Traceback (most recent call last):
  File "/Users/debekoe/lib/azure-cli/lib/python2.7/site-packages/azclishell/app.py", line 537, in cli_execute
    result = self.app.execute(args)
  File "/Users/debekoe/lib/azure-cli/lib/python2.7/site-packages/azure/cli/core/application.py", line 203, in execute
    result = expanded_arg.func(params)
  File "/Users/debekoe/lib/azure-cli/lib/python2.7/site-packages/azure/cli/core/commands/__init__.py", line 278, in __call__
    return self.handler(*args, **kwargs)
  File "/Users/debekoe/lib/azure-cli/lib/python2.7/site-packages/azure/cli/core/commands/__init__.py", line 476, in _execute_command
    reraise(*sys.exc_info())
  File "/Users/debekoe/lib/azure-cli/lib/python2.7/site-packages/azure/cli/core/commands/__init__.py", line 450, in _execute_command
    result = op(client, **kwargs) if client else op(**kwargs)
  File "/Users/debekoe/lib/azure-cli/lib/python2.7/site-packages/azure/cli/command_modules/appservice/custom.py", line 902, in get_streaming_log
    scm_url = _get_scm_url(resource_group_name, name, slot)
  File "/Users/debekoe/lib/azure-cli/lib/python2.7/site-packages/azure/cli/command_modules/appservice/custom.py", line 741, in _get_scm_url
    webapp = show_webapp(resource_group_name, name, slot=slot)
  File "/Users/debekoe/lib/azure-cli/lib/python2.7/site-packages/azure/cli/command_modules/appservice/custom.py", line 86, in show_webapp
    _rename_server_farm_props(webapp)
  File "/Users/debekoe/lib/azure-cli/lib/python2.7/site-packages/azure/cli/command_modules/appservice/custom.py", line 126, in _rename_server_farm_props
    setattr(webapp, 'app_service_plan_id', webapp.server_farm_id)
AttributeError: 'NoneType' object has no attribute 'server_farm_id'

$ az --version
azure-cli (2.0.5)

acr (2.0.3)
acs (2.0.5)
appservice (0.1.5)
batch (2.0.3)
cdn (0.0.1)
cloud (2.0.2)
cognitiveservices (0.1.1)
command-modules-nspkg (2.0.0)
component (2.0.3)
configure (2.0.5)
core (2.0.5)
dla (0.0.5)
dls (0.0.5)
documentdb (0.1.5)
feedback (2.0.2)
find (0.2.2)
interactive (0.3.0)
iot (0.1.5)
keyvault (2.0.3)
lab (0.0.4)
monitor (0.0.3)
network (2.0.5)
nspkg (3.0.0)
profile (2.0.4)
redis (0.2.2)
resource (2.0.5)
role (2.0.3)
sf (1.0.0)
sql (2.0.2)
storage (2.0.5)
vm (2.0.5)

Python (Darwin) 2.7.10 (default, Feb  6 2017, 23:53:20) 
[GCC 4.2.1 Compatible Apple LLVM 8.0.0 (clang-800.0.34)]

Python location '/Users/debekoe/lib/azure-cli/bin/python'