Error occurrs creating/deploying VMWare VM

Problem:
When I attempt to create a new VMWare virtual machine, I receive the error: Failed to create a compute vmware (VMware) instance node: undefined method `attributes’ for #String:0x007f351a2acc30

Here is the stack trace:

2018-05-23T10:22:22 ba196532 [app] [W] Failed to create a compute vmware (VMware) instance node: undefined method `attributes' for #<String:0x007f351a2acc30>
 |
 | NoMethodError: undefined method `attributes' for #<String:0x007f351a2acc30>
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/fog-vsphere-2.1.1/lib/fog/vsphere/requests/compute/create_vm.rb:198:in `create_controller'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/fog-vsphere-2.1.1/lib/fog/vsphere/requests/compute/create_vm.rb:101:in `block in device_change'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/fog-vsphere-2.1.1/lib/fog/vsphere/requests/compute/create_vm.rb:101:in `each'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/fog-vsphere-2.1.1/lib/fog/vsphere/requests/compute/create_vm.rb:101:in `each_with_index'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/fog-vsphere-2.1.1/lib/fog/vsphere/requests/compute/create_vm.rb:101:in `each'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/fog-vsphere-2.1.1/lib/fog/vsphere/requests/compute/create_vm.rb:101:in `map'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/fog-vsphere-2.1.1/lib/fog/vsphere/requests/compute/create_vm.rb:101:in `device_change'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/fog-vsphere-2.1.1/lib/fog/vsphere/requests/compute/create_vm.rb:17:in `create_vm'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/fog-vsphere-2.1.1/lib/fog/vsphere/models/compute/server.rb:303:in `save'
 | /usr/share/foreman/app/models/compute_resources/foreman/model/vmware.rb:447:in `create_vm'
 | /usr/share/foreman/app/models/concerns/orchestration/compute.rb:77:in `setCompute'
 | /usr/share/foreman/app/models/concerns/orchestration.rb:222:in `execute'
 | /usr/share/foreman/app/models/concerns/orchestration.rb:145:in `block in process'
 | /usr/share/foreman/app/models/concerns/orchestration.rb:137:in `each'
 | /usr/share/foreman/app/models/concerns/orchestration.rb:137:in `process'
 | /usr/share/foreman/app/models/concerns/orchestration.rb:44:in `around_save_orchestration'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activesupport-5.1.4/lib/active_support/callbacks.rb:117:in `block in run_callbacks'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activesupport-5.1.4/lib/active_support/callbacks.rb:135:in `run_callbacks'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activesupport-5.1.4/lib/active_support/callbacks.rb:827:in `_run_save_callbacks'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activerecord-5.1.4/lib/active_record/callbacks.rb:336:in `create_or_update'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activerecord-5.1.4/lib/active_record/persistence.rb:129:in `save'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activerecord-5.1.4/lib/active_record/validations.rb:44:in `save'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activerecord-5.1.4/lib/active_record/attribute_methods/dirty.rb:35:in `save'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activerecord-5.1.4/lib/active_record/transactions.rb:308:in `block (2 levels) in save'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activerecord-5.1.4/lib/active_record/transactions.rb:384:in `block in with_transaction_returning_status'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activerecord-5.1.4/lib/active_record/connection_adapters/abstract/database_statements.rb:235:in `block in transaction'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activerecord-5.1.4/lib/active_record/connection_adapters/abstract/transaction.rb:194:in `block in within_new_transaction'
 | /usr/lib/ruby/2.3.0/monitor.rb:214:in `mon_synchronize'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activerecord-5.1.4/lib/active_record/connection_adapters/abstract/transaction.rb:191:in `within_new_transaction'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activerecord-5.1.4/lib/active_record/connection_adapters/abstract/database_statements.rb:235:in `transaction'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activerecord-5.1.4/lib/active_record/transactions.rb:210:in `transaction'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activerecord-5.1.4/lib/active_record/transactions.rb:381:in `with_transaction_returning_status'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activerecord-5.1.4/lib/active_record/transactions.rb:308:in `block in save'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activerecord-5.1.4/lib/active_record/transactions.rb:323:in `rollback_active_record_state!'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activerecord-5.1.4/lib/active_record/transactions.rb:307:in `save'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activerecord-5.1.4/lib/active_record/suppressor.rb:42:in `save'
 | /usr/share/foreman/app/models/concerns/foreman/sti.rb:26:in `save'
 | /usr/share/foreman/app/controllers/hosts_controller.rb:106:in `create'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_controller/metal/basic_implicit_render.rb:4:in `send_action'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/abstract_controller/base.rb:186:in `process_action'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_controller/metal/rendering.rb:30:in `process_action'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/abstract_controller/callbacks.rb:20:in `block in process_action'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activesupport-5.1.4/lib/active_support/callbacks.rb:108:in `block in run_callbacks'
 | /usr/share/foreman/app/controllers/concerns/application_shared.rb:15:in `set_timezone'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activesupport-5.1.4/lib/active_support/callbacks.rb:117:in `block in run_callbacks'
 | /usr/share/foreman/app/models/concerns/foreman/thread_session.rb:32:in `clear_thread'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activesupport-5.1.4/lib/active_support/callbacks.rb:117:in `block in run_callbacks'
 | /usr/share/foreman/app/controllers/concerns/foreman/controller/topbar_sweeper.rb:12:in `set_topbar_sweeper_controller'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activesupport-5.1.4/lib/active_support/callbacks.rb:117:in `block in run_callbacks'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/audited-4.5.0/lib/audited/sweeper.rb:14:in `around'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activesupport-5.1.4/lib/active_support/callbacks.rb:117:in `block in run_callbacks'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/audited-4.5.0/lib/audited/sweeper.rb:14:in `around'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activesupport-5.1.4/lib/active_support/callbacks.rb:117:in `block in run_callbacks'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activesupport-5.1.4/lib/active_support/callbacks.rb:135:in `run_callbacks'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/abstract_controller/callbacks.rb:19:in `process_action'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_controller/metal/rescue.rb:20:in `process_action'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_controller/metal/instrumentation.rb:32:in `block in process_action'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activesupport-5.1.4/lib/active_support/notifications.rb:166:in `block in instrument'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activesupport-5.1.4/lib/active_support/notifications/instrumenter.rb:21:in `instrument'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activesupport-5.1.4/lib/active_support/notifications.rb:166:in `instrument'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_controller/metal/instrumentation.rb:30:in `process_action'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_controller/metal/params_wrapper.rb:252:in `process_action'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activerecord-5.1.4/lib/active_record/railties/controller_runtime.rb:22:in `process_action'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/abstract_controller/base.rb:124:in `process'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionview-5.1.4/lib/action_view/rendering.rb:30:in `process'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_controller/metal.rb:189:in `dispatch'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_controller/metal.rb:253:in `dispatch'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_dispatch/routing/route_set.rb:49:in `dispatch'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_dispatch/routing/route_set.rb:31:in `serve'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_dispatch/journey/router.rb:50:in `block in serve'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_dispatch/journey/router.rb:33:in `each'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_dispatch/journey/router.rb:33:in `serve'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_dispatch/routing/route_set.rb:834:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/apipie-rails-0.5.7/lib/apipie/static_dispatcher.rb:65:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/apipie-rails-0.5.7/lib/apipie/extractor/recorder.rb:136:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/apipie-rails-0.5.7/lib/apipie/middleware/checksum_in_headers.rb:27:in `call'
 | /usr/share/foreman/lib/middleware/catch_json_parse_errors.rb:8:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/rack-2.0.4/lib/rack/etag.rb:25:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/rack-2.0.4/lib/rack/conditional_get.rb:38:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/rack-2.0.4/lib/rack/head.rb:12:in `call'
 | /usr/share/foreman/lib/middleware/session_safe_logging.rb:17:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/rack-2.0.4/lib/rack/session/abstract/id.rb:232:in `context'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/rack-2.0.4/lib/rack/session/abstract/id.rb:226:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_dispatch/middleware/cookies.rb:613:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_dispatch/middleware/callbacks.rb:26:in `block in call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activesupport-5.1.4/lib/active_support/callbacks.rb:97:in `run_callbacks'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_dispatch/middleware/callbacks.rb:24:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_dispatch/middleware/debug_exceptions.rb:59:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_dispatch/middleware/show_exceptions.rb:31:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/railties-5.1.4/lib/rails/rack/logger.rb:36:in `call_app'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/railties-5.1.4/lib/rails/rack/logger.rb:26:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/sprockets-rails-3.2.1/lib/sprockets/rails/quiet_assets.rb:13:in `call'
 | /usr/share/foreman/lib/middleware/tagged_logging.rb:18:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_dispatch/middleware/remote_ip.rb:79:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_dispatch/middleware/request_id.rb:25:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/rack-2.0.4/lib/rack/method_override.rb:22:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/rack-2.0.4/lib/rack/runtime.rb:22:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/activesupport-5.1.4/lib/active_support/cache/strategy/local_cache_middleware.rb:27:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_dispatch/middleware/executor.rb:12:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/actionpack-5.1.4/lib/action_dispatch/middleware/static.rb:125:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/rack-2.0.4/lib/rack/sendfile.rb:111:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/secure_headers-3.7.3/lib/secure_headers/middleware.rb:12:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/railties-5.1.4/lib/rails/engine.rb:522:in `call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/railties-5.1.4/lib/rails/railtie.rb:185:in `public_send'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/railties-5.1.4/lib/rails/railtie.rb:185:in `method_missing'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/rack-2.0.4/lib/rack/urlmap.rb:68:in `block in call'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/rack-2.0.4/lib/rack/urlmap.rb:53:in `each'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/rack-2.0.4/lib/rack/urlmap.rb:53:in `call'
 | /usr/lib/ruby/vendor_ruby/phusion_passenger/rack/thread_handler_extension.rb:97:in `process_request'
 | /usr/lib/ruby/vendor_ruby/phusion_passenger/request_handler/thread_handler.rb:160:in `accept_and_process_next_request'
 | /usr/lib/ruby/vendor_ruby/phusion_passenger/request_handler/thread_handler.rb:113:in `main_loop'
 | /usr/lib/ruby/vendor_ruby/phusion_passenger/request_handler.rb:416:in `block (3 levels) in start_threads'
 | /usr/lib/ruby/vendor_ruby/phusion_passenger/utils.rb:113:in `block in create_thread_and_abort_on_exception'
 | /usr/share/foreman/vendor/ruby/2.3.0/gems/logging-2.2.2/lib/logging/diagnostic_context.rb:474:in `block in create_with_logging_context'

Expected outcome: The VM should get created

Foreman and Proxy versions: 1.17.0

Foreman and Proxy plugin versions:

Other relevant data:
Running on Ubuntu 16.04

This is https://projects.theforeman.org/issues/23335 which will be fixed in 1.17.1.

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