Error when start sunstone server : `strip!': can't modify frozen String (RuntimeError)

I do new installation using repo, I can start opennebula with no error but when I start the sunstone I get error show below : I using ubuntu server 14.04, please advice.

gem list:

addressable (2.4.0)
amazon-ec2 (0.9.17)
aws-sdk (2.6.4, 1.66.0)
aws-sdk-core (2.6.4)
aws-sdk-resources (2.6.4)
aws-sdk-v1 (1.66.0)
azure (0.7.6)
azure-core (0.1.5)
builder (3.2.2)
configparser (0.1.4)
curb (0.9.3)
daemons (1.2.4)
eventmachine (1.2.0.1)
faraday (0.9.2)
faraday_middleware (0.10.0)
hashie (3.4.6)
inflection (1.0.0)
jmespath (1.3.1)
json (1.8.3)
memcache-client (1.8.5)
mime-types (2.99.3)
mini_portile2 (2.1.0)
multipart-post (2.0.0)
mysql (2.9.1)
net-ldap (0.12.1)
nokogiri (1.6.8)
ox (2.4.5)
parse-cron (0.1.4)
pkg-config (1.1.7)
polyglot (0.3.5)
rack (1.6.4)
rack-protection (1.5.3)
scrub_rb (1.0.1)
sequel (4.38.0)
sinatra (1.4.7)
sqlite3 (1.3.11)
systemu (2.6.5)
thin (1.7.0)
thor (0.19.1)
tilt (2.0.5)
treetop (1.6.8)
trollop (2.1.2)
uuidtools (2.1.5)
xml-simple (1.1.5)
zendesk_api (1.13.4)

root@fe:~# cat /var/log/one/sunstone.error
/usr/lib/ruby/1.9.1/rubygems/version.rb:191:in strip!': can't modify frozen String (RuntimeError) from /usr/lib/ruby/1.9.1/rubygems/version.rb:191:ininitialize’
from /var/lib/gems/1.9.1/gems/hashie-3.4.6/lib/hashie/extensions/ruby_version_check.rb:10:in new' from /var/lib/gems/1.9.1/gems/hashie-3.4.6/lib/hashie/extensions/ruby_version_check.rb:10:inwith_minimum_ruby’
from /var/lib/gems/1.9.1/gems/hashie-3.4.6/lib/hashie/array.rb:8:in <class:Array>' from /var/lib/gems/1.9.1/gems/hashie-3.4.6/lib/hashie/array.rb:5:inmodule:Hashie
from /var/lib/gems/1.9.1/gems/hashie-3.4.6/lib/hashie/array.rb:4:in <top (required)>' from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:inrequire’
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in require' from /var/lib/gems/1.9.1/gems/hashie-3.4.6/lib/hashie/mash.rb:2:in<top (required)>'
from /var/lib/gems/1.9.1/gems/zendesk_api-1.13.4/lib/zendesk_api/trackie.rb:6:in <module:ZendeskAPI>' from /var/lib/gems/1.9.1/gems/zendesk_api-1.13.4/lib/zendesk_api/trackie.rb:4:in<top (required)>'
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in require' from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:inrequire’
from /var/lib/gems/1.9.1/gems/zendesk_api-1.13.4/lib/zendesk_api/resource.rb:2:in <top (required)>' from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:inrequire’
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in require' from /var/lib/gems/1.9.1/gems/zendesk_api-1.13.4/lib/zendesk_api/collection.rb:1:in<top (required)>'
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in require' from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:inrequire’
from /var/lib/gems/1.9.1/gems/zendesk_api-1.13.4/lib/zendesk_api/client.rb:6:in <top (required)>' from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:inrequire’
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in require' from /var/lib/gems/1.9.1/gems/zendesk_api-1.13.4/lib/zendesk_api.rb:4:in<top (required)>'
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:60:in require' from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:60:inrescue in require’
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:35:in require' from /usr/lib/one/sunstone/routes/support.rb:20:in<top (required)>‘
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in require' from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:inrequire’
from /usr/lib/one/sunstone/sunstone-server.rb:418:in block in <main>' from /usr/lib/one/sunstone/sunstone-server.rb:417:ineach’
from /usr/lib/one/sunstone/sunstone-server.rb:417:in `’

Hi,

There must be a compatibility problem with your zendesk_api gem version.
I’ve opened a ticket to solve it:
http://dev.opennebula.org/issues/4830

The problem seems to be the hashie gem. You can fix this installing a compatible version manually:

# gem uninstall hashie
# gem install hashie --version '= 3.4.4'

For next releases we are fixing tested gem versions to try to minimize these kind of problems.

it working now by remove hashie and reinstall with 3.4.4 , tq