ACC Data Collection Fails - downcase': input string invalid (ArgumentError) - Support and Troubleshooting

ACC Data Collection Fails - downcase': input string invalid (ArgumentError) Issue We have some situations in Agent Client Collector where after the installation for some reason the Agent can reach and connect to MID Server, however the Host Data Collection fails.

From the latest ecc_queue for the agent with the issue we see an error like this:

{\"data_collection\":{\"error_msg\":\"cmd_err: C:/ProgramData/ServiceNow/agent-client-collector/cache/acc-f-commons/bin/ command_runner.rb:41:in `downcase': input string invalid (ArgumentError) \\n\\tfrom C:/ProgramData/ServiceNow/agent-client-collector/cache/acc-f-commons/bin/command_runner.rb:41:in `runCmd'\\n\\tfrom C:/ProgramData/ServiceNow/agent-client-collector/cache/acc-f-commons/bin/win_command_runner.rb:10:in `runCmd'\\n\\tfrom C:/ProgramData/ServiceNow/agent-client-collector/cache/acc-f-modules/bin/data_collection.rb:186:in `block in getFqdn'\\n\\tfrom C:/ProgramData/ServiceNow/agent-client-collector/cache/acc-f-modules/bin/data_collection.rb:171:in `each'\\n\\tfrom C:/ProgramData/ServiceNow/agent-client-collector/cache/acc-f-modules/bin/data_collection.rb:171:in `getFqdn'\\n\\tfrom C:/ProgramData/ServiceNow/agent-client-collector/cache/acc-f-modules/bin/data_collection.rb:405:in `&lt;main&gt;'\\n\",\"error_backtrace\":\"C:/ProgramData/ServiceNow/agent-client-collector/cache/acc-f-commons/bin/command_runner.rb:59:in `runCmd'\\nC:/ProgramData/ServiceNow/agent-client-collector/cache/acc-f-commons/bin/command_runner.rb:9:in `runModule'\\nC:/ProgramData/ServiceNow/agent-client-collector/cache/acc-f-commons/bin/endpoint_discovery.rb:175:in `block in &lt;main&gt;'\\nC:/ProgramData/ServiceNow/agent-client-collector/cache/acc-f-commons/bin/endpoint_discovery.rb:166:in `each'\\nC:/ProgramData/ServiceNow/agent-client-collector/cache/acc-f-commons/bin/ endpoint_discovery.rb :166:in `&lt;main&gt;'\\n\",\"failed_cmd\":\"ruby C:\\\\ProgramData\\\\ServiceNow\\\\agent-client-collector\\\\cache\\\\acc-f-modules\\\\bin\\\\data_collection.rb --parent_cache_dir C:/ProgramData/ServiceNow/agent-client-collector/cache --log_level FATAL\"}

Cause Per our documentation: https://docs.servicenow.com/bundle/sandiego-it-operations-management/page/product/agent-client-collector/concept/agent-client-collector-for-visibility.html

If values returned are not in English, the returned data cannot be parsed properly and the discovery will fail.

Resolution At the time of writing, ACC-V does not support multi-languages. Agent needs to use English as the default language.