Unexpected API Error. <class 'nova.exception.NeutronAdminCredentialConfigurat

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Unexpected API Error. <class 'nova.exception.NeutronAdminCredentialConfigurationInvalid'> (HTTP 500) 解决办法
; ?! l) u; r$ Q- Q2 E9 L; m' e
http://controller:8774 "POST /v2.1/servers HTTP/1.1" 500 None
RESP: [500] Content-Type: application/json; charset=UTF-8 openstack-API-Version: compute 2.1 Vary: openstack-API-Version, X-OpenStack-Nova-API-Version X-OpenStack-Nova-API-Version: 2.1 x-compute-request-id: req-af926773-9a0d-4738-b788-16283f94be0d x-openstack-request-id: req-af926773-9a0d-4738-b788-16283f94be0d
% {) G4 e0 g/ n3 z. dRESP BODY: {"computeFault": {"code": 500, "message": "Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.\n<class 'nova.exception.NeutronAdminCredentialConfigurationInvalid'>"}}
2 m. [2 H  a9 t  h) ~  J- APOST call to compute for http://controller:8774/v2.1/servers used request id req-af926773-9a0d-4738-b788-16283f94be0d
Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.
: U; v0 E- f8 g& T; e+ o, g2 z+ Z* F<class 'nova.exception.NeutronAdminCredentialConfigurationInvalid'> (HTTP 500) (Request-ID: req-af926773-9a0d-4738-b788-16283f94be0d)
" O7 ]) u. [. ]) X% x" V* mTraceback (most recent call last):
  File "/usr/lib/python3/dist-packages/cliff/app.py", line 410, in run_subcommand
$ K& z0 h  {8 C! x5 z    result = cmd.run(parsed_args)
             ^^^^^^^^^^^^^^^^^^^^
4 _. R( W! [' w" N  File "/usr/lib/python3/dist-packages/osc_lib/command/command.py", line 39, in run
$ g8 _  Q1 g6 Z2 p    return super(Command, self).run(parsed_args)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
; T7 F, F. [" H& Y# d  File "/usr/lib/python3/dist-packages/cliff/display.py", line 115, in run
    column_names, data = self.take_action(parsed_args)
" m6 E0 K% C( v; t$ e' h                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
0 g: m4 v! G# O  File "/usr/lib/python3/dist-packages/openstackclient/compute/v2/server.py", line 1729, in take_action
    server = compute_client.servers.create(*boot_args, **boot_kwargs)
/ L0 B% K2 D6 y$ `             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
; o; ~/ q1 p" m  File "/usr/lib/python3/dist-packages/novaclient/v2/servers.py", line 1562, in create
    return self._boot(response_key, *boot_args, **boot_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/novaclient/v2/servers.py", line 887, in _boot
; D+ S0 _, v- h+ W* L    return self._create('/servers', body, response_key,
8 P( o& L7 O) \+ I           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/novaclient/base.py", line 363, in _create
6 Q! E, X$ v  P2 i% W    resp, body = self.api.client.post(url, body=body)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/keystoneauth1/adapter.py", line 401, in post
    return self.request(url, 'POST', **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/novaclient/client.py", line 78, in request
8 ~* \7 P% u% F, J" L2 ?9 K    raise exceptions.from_response(resp, body, url, method)
novaclient.exceptions.ClientException: Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.
<class 'nova.exception.NeutronAdminCredentialConfigurationInvalid'> (HTTP 500) (Request-ID: req-af926773-9a0d-4738-b788-16283f94be0d)
clean_up CreateServer: Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.
<class 'nova.exception.NeutronAdminCredentialConfigurationInvalid'> (HTTP 500) (Request-ID: req-af926773-9a0d-4738-b788-16283f94be0d)
& ]/ _& C9 a$ n" oEND return value: 1


解决办法：
# f& @. `/ r8 t. R2 K) {6 L修改nova.conf和neutron.conf 文件中 keystone_authtoken项 service_token_roles_required = false  ，   如果是true 一定要改成false。