Hi , Please help.! I try to install heat ,ceilometer and aodh openstack using the devstack pike version. But getting the below error: *no matching distribution found for oslo.log>=4.3.0* pip version 9.x python version 2.7 Next Attempt: Upgraded the pip to 20.x but still gets the same error. Next Attempt: *Updated the python 3.6(pip with the old version) but then gets the below error:* Traceback (most recent call last): File "/opt/stack/devstack/tools/outfilter.py", line 85, in <module> sys.exit(main()) File "/opt/stack/devstack/tools/outfilter.py", line 53, in main outfile = open(opts.outfile, 'a', 0) ValueError: can't have unbuffered text I/O Next Attempt: Initially heat was installed successfully, but after the above errors from ceilometer and aodh, I commented them and executed stack.sh but now heat installation also fails with below error: *(pip with 9.x and python 2.7)* CRITICAL keystone [None req-ddd57555-0e66-4e94-8349-044e79573d01 None None] Unhandled error: TypeError: __init__() got an unexpected keyword argument 'encoding' 2021-02-01 11:43:37.083 | ERROR keystone Traceback (most recent call last): 2021-02-01 11:43:37.083 | ERROR keystone File "/usr/local/bin/keystone-manage", line 10, in <module> 2021-02-01 11:43:37.083 | ERROR keystone sys.exit(main()) 2021-02-01 11:43:37.083 | ERROR keystone File "/opt/stack/keystone/keystone/cmd/manage.py", line 45, in main 2021-02-01 11:43:37.083 | ERROR keystone cli.main(argv=sys.argv, config_files=config_files) 2021-02-01 11:43:37.083 | ERROR keystone File "/opt/stack/keystone/keystone/cmd/cli.py", line 1331, in main 2021-02-01 11:43:37.083 | ERROR keystone CONF.command.cmd_class.main() 2021-02-01 11:43:37.083 | ERROR keystone File "/opt/stack/keystone/keystone/cmd/cli.py", line 380, in main 2021-02-01 11:43:37.083 | ERROR keystone klass.do_bootstrap() 2021-02-01 11:43:37.083 | ERROR keystone File "/opt/stack/keystone/keystone/cmd/cli.py", line 190, in do_bootstrap 2021-02-01 11:43:37.083 | ERROR keystone domain=default_domain) 2021-02-01 11:43:37.083 | ERROR keystone File "/opt/stack/keystone/keystone/common/manager.py", line 110, in wrapped 2021-02-01 11:43:37.084 | ERROR keystone __ret_val = __f(*args, **kwargs) 2021-02-01 11:43:37.084 | ERROR keystone File "/opt/stack/keystone/keystone/resource/core.py", line 723, in create_domain 2021-02-01 11:43:37.084 | ERROR keystone domain_id, project_from_domain, initiator) 2021-02-01 11:43:37.084 | ERROR keystone File "/opt/stack/keystone/keystone/common/manager.py", line 110, in wrapped 2021-02-01 11:43:37.084 | ERROR keystone __ret_val = __f(*args, **kwargs) 2021-02-01 11:43:37.084 | ERROR keystone File "/opt/stack/keystone/keystone/resource/core.py", line 221, in create_project 2021-02-01 11:43:37.084 | ERROR keystone ret['domain_id']) 2021-02-01 11:43:37.084 | ERROR keystone File "/usr/local/lib/python2.7/dist-packages/dogpile/cache/region.py", line 1239, in set_ 2021-02-01 11:43:37.084 | ERROR keystone self.set(key, value) 2021-02-01 11:43:37.084 | ERROR keystone File "/usr/local/lib/python2.7/dist-packages/dogpile/cache/region.py", line 983, in set 2021-02-01 11:43:37.084 | ERROR keystone key = self.key_mangler(key) 2021-02-01 11:43:37.084 | ERROR keystone File "/opt/stack/keystone/keystone/common/cache/core.py", line 87, in key_mangler 2021-02-01 11:43:37.084 | ERROR keystone key = '%s:%s' % (key, invalidation_manager.region_id) 2021-02-01 11:43:37.084 | ERROR keystone File "/opt/stack/keystone/keystone/common/cache/core.py", line 45, in region_id 2021-02-01 11:43:37.084 | ERROR keystone self._region_key, self._generate_new_id, expiration_time=-1) 2021-02-01 11:43:37.084 | ERROR keystone File "/usr/local/lib/python2.7/dist-packages/dogpile/cache/region.py", line 833, in get_or_create 2021-02-01 11:43:37.084 | ERROR keystone async_creator) as value: 2021-02-01 11:43:37.084 | ERROR keystone File "/usr/local/lib/python2.7/dist-packages/dogpile/lock.py", line 154, in __enter__ 2021-02-01 11:43:37.084 | ERROR keystone return self._enter() 2021-02-01 11:43:37.084 | ERROR keystone File "/usr/local/lib/python2.7/dist-packages/dogpile/lock.py", line 87, in _enter 2021-02-01 11:43:37.084 | ERROR keystone value = value_fn() 2021-02-01 11:43:37.084 | ERROR keystone File "/usr/local/lib/python2.7/dist-packages/dogpile/cache/region.py", line 788, in get_value 2021-02-01 11:43:37.084 | ERROR keystone value = self.backend.get(key) 2021-02-01 11:43:37.084 | ERROR keystone File "/opt/stack/keystone/keystone/common/cache/_context_cache.py", line 72, in get 2021-02-01 11:43:37.084 | ERROR keystone value = self._get_local_cache(key) 2021-02-01 11:43:37.084 | ERROR keystone File "/opt/stack/keystone/keystone/common/cache/_context_cache.py", line 57, in _get_local_cache 2021-02-01 11:43:37.084 | ERROR keystone value = msgpackutils.loads(value) 2021-02-01 11:43:37.084 | ERROR keystone File "/usr/local/lib/python2.7/dist-packages/oslo_serialization/msgpackutils.py", line 487, in loads 2021-02-01 11:43:37.084 | ERROR keystone return msgpack.unpackb(s, ext_hook=ext_hook, encoding='utf-8') 2021-02-01 11:43:37.084 | ERROR keystone File "/usr/local/lib/python2.7/dist-packages/msgpack/fallback.py", line 126, in unpackb 2021-02-01 11:43:37.084 | ERROR keystone unpacker = Unpacker(None, max_buffer_size=len(packed), **kwargs) 2021-02-01 11:43:37.084 | ERROR keystone TypeError: __init__() got an unexpected keyword argument 'encoding' 2021-02-01 11:43:37.084 | ERROR keystone Thanks, Nitish Goel