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

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Unexpected API Error. <class 'nova.exception.NeutronAdminCredentialConfigurationInvalid'> (HTTP 500) 解决办法
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3 @5 R4 F/ E) v8 T6 dhttp://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
2 I% N, Z  T+ {RESP 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'>"}}
* Y: c  ^3 I; [0 V! e  t2 yPOST call to compute for http://controller:8774/v2.1/servers used request id req-af926773-9a0d-4738-b788-16283f94be0d
; t# B, u, B. h% x& \9 CUnexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.
" X& S9 V8 H. [8 E" z) H$ P. V<class 'nova.exception.NeutronAdminCredentialConfigurationInvalid'> (HTTP 500) (Request-ID: req-af926773-9a0d-4738-b788-16283f94be0d)
Traceback (most recent call last):
% ?# K, G0 Y9 r6 A7 B& o  File "/usr/lib/python3/dist-packages/cliff/app.py", line 410, in run_subcommand
2 M. x* W; D. W% e* T: n& f    result = cmd.run(parsed_args)
, s, o8 B1 o6 }9 G; r! O             ^^^^^^^^^^^^^^^^^^^^
/ Y- d; v$ y3 N/ O  File "/usr/lib/python3/dist-packages/osc_lib/command/command.py", line 39, in run
    return super(Command, self).run(parsed_args)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/cliff/display.py", line 115, in run
    column_names, data = self.take_action(parsed_args)
9 J6 N' W2 ^. O. d3 J: x9 q2 t                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  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)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
8 V6 |) C7 N3 H4 U$ c% z  File "/usr/lib/python3/dist-packages/novaclient/v2/servers.py", line 1562, in create
; O; J9 e3 h5 T$ c; w/ E7 B+ @    return self._boot(response_key, *boot_args, **boot_kwargs)
( l  m7 |$ S$ y- i6 M: P           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/novaclient/v2/servers.py", line 887, in _boot
, @! q1 Q( `& _- F5 H0 q    return self._create('/servers', body, response_key,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/novaclient/base.py", line 363, in _create
& A  O2 q) n2 o' A    resp, body = self.api.client.post(url, body=body)
$ d9 g, ]; E0 q( @2 p                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  x3 L! N) L! {" r7 F9 G" A' a  File "/usr/lib/python3/dist-packages/keystoneauth1/adapter.py", line 401, in post
    return self.request(url, 'POST', **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
; }+ m. Q$ A6 m& c- {  File "/usr/lib/python3/dist-packages/novaclient/client.py", line 78, in request
    raise exceptions.from_response(resp, body, url, method)
. K6 D: x; \  Jnovaclient.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)
, G4 }* d3 G& |" e: Y8 B2 pclean_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)
7 d1 D1 z) X. F* r! }0 R; KEND return value: 1

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解决办法：
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。
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