Livy server fails to start during downgrade due to absence of 'conf' directory

Traceback (most recent call last):
  File "/var/lib/ambari-agent/cache/common-services/SPARK/1.2.1/package/scripts/livy_server.py", line 141, in <module>
    LivyServer().execute()
  File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py", line 367, in execute
    method(env)
  File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py", line 970, in restart
    self.start(env, upgrade_type=upgrade_type)
  File "/var/lib/ambari-agent/cache/common-services/SPARK/1.2.1/package/scripts/livy_server.py", line 61, in start
    self.configure(env)
  File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py", line 120, in locking_configure
    original_configure(obj, *args, **kw)
  File "/var/lib/ambari-agent/cache/common-services/SPARK/1.2.1/package/scripts/livy_server.py", line 51, in configure
    setup_livy(env, 'server', upgrade_type=upgrade_type, action = 'config')
  File "/var/lib/ambari-agent/cache/common-services/SPARK/1.2.1/package/scripts/setup_livy.py", line 56, in setup_livy
    mode=0644,
  File "/usr/lib/python2.6/site-packages/resource_management/core/base.py", line 166, in __init__
    self.env.run()
  File "/usr/lib/python2.6/site-packages/resource_management/core/environment.py", line 160, in run
    self.run_action(resource, action)
  File "/usr/lib/python2.6/site-packages/resource_management/core/environment.py", line 124, in run_action
    provider_action()
  File "/usr/lib/python2.6/site-packages/resource_management/core/providers/system.py", line 120, in action_create
    raise Fail("Applying %s failed, parent directory %s doesn't exist" % (self.resource, dirname))
resource_management.core.exceptions.Fail: Applying File['/usr/hdp/current/livy-server/conf/livy-env.sh'] failed, parent directory /usr/hdp/current/livy-server/conf doesn't exist

root@ctr-e134-1499953498516-324773-01-000007:/usr/hdp/current/livy-server# ls -la /usr/hdp/current/livy-server/
total 40
drwxr-xr-x  8 root root  4096 Nov 20 23:49 .
drwxr-xr-x 42 root root  4096 Nov 21 00:05 ..
drwxr-xr-x  2 root root  4096 Nov 20 23:43 bin
lrwxrwxrwx  1 root root    14 Apr 21  2017 conf -> /etc/livy/conf
drwxr-xr-x  3 root root  4096 Nov 20 23:43 etc
drwxr-xr-x  2 root root 12288 Nov 20 23:43 jars
drwxr-xr-x  2 livy livy  4096 Nov 20 23:49 logs
drwxr-xr-x  2 root root  4096 Nov 20 23:43 repl-jars
drwxr-xr-x  2 root root  4096 Nov 20 23:43 rsc-jars

===============
root@ctr-e134-1499953498516-324773-01-000007:~# ls -la /etc/livy/
total 16
drwxr-xr-x   4 root root 4096 Nov 21 04:32 .
drwxr-xr-x 120 root root 4096 Nov 21 03:26 ..
drwxr-xr-x   3 root root 4096 Nov 21 03:30 2.6.4.0-36
lrwxrwxrwx   1 root root   21 Nov 21 04:32 conf -> /usr/hdp/current/livy
drwxr-xr-x   2 root root 4096 Nov 20 23:49 conf.backup

2017-11-21 04:32:08,022 - Link['/etc/livy/conf'] {'to': '/usr/hdp/current/livy'}
2017-11-21 04:32:08,022 - Link['/etc/livy/conf'] replacing old symlink to /grid/0/hdp/current/livy
2017-11-21 04:32:08,022 - Warning: linking to nonexistent location /usr/hdp/current/livy
2017-11-21 04:32:08,022 - Creating symbolic Link['/etc/livy/conf'] to /usr/hdp/current/livy

Skipping the conf-select tool on livy since /etc/livy/conf does not exist.