# Error while starting logstash agent in version 6.2.3
**URL:** https://discuss.elastic.co/t/error-while-starting-logstash-agent-in-version-6-2-3/127816
**Category:** Logstash
**Created:** [April 12, 2018, 12:38pm UTC](https://discuss.elastic.co/t/error-while-starting-logstash-agent-in-version-6-2-3/127816 "2018-04-12T12:38:50Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@amritesh\_mishra](https://discuss.elastic.co/u/amritesh_mishra)
#### Post date: [April 12, 2018, 12:38pm UTC](https://discuss.elastic.co/t/error-while-starting-logstash-agent-in-version-6-2-3/127816/1 "2018-04-12T12:38:50Z")
[2018-04-12T11:05:18,164][ERROR][logstash.agent] Failed to execute action {:action=\>LogStash::PipelineAction::Create/pipeline\_id:main, :exception=\>"LogStash:
:ConfigurationError", :message=\>"Expected one of #, input, filter, output at line 1, column 1 (byte 1) after ", :backtrace=\>["/usr/share/logstash/logstash-core/lib/logs
tash/compiler.rb:42:in `compile_imperative'", "/usr/share/logstash/logstash-core/lib/logstash/compiler.rb:50:in`compile\_graph'", "/usr/share/logstash/logstash-core/lib
/logstash/compiler.rb:12:in `block in compile_sources'", "org/jruby/RubyArray.java:2486:in`map'", "/usr/share/logstash/logstash-core/lib/logstash/compiler.rb:11:in `co mpile_sources'", "/usr/share/logstash/logstash-core/lib/logstash/pipeline.rb:51:in`initialize'", "/usr/share/logstash/logstash-core/lib/logstash/pipeline.rb:169:in `in itialize'", "/usr/share/logstash/logstash-core/lib/logstash/pipeline_action/create.rb:40:in`execute'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:315:in
`block in converge_state'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:141:in`with\_pipelines'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:
312:in `block in converge_state'", "org/jruby/RubyArray.java:1734:in`each'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:299:in `converge_state'", "/usr/s hare/logstash/logstash-core/lib/logstash/agent.rb:166:in`block in converge\_state\_and\_update'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:141:in `with_pi pelines'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:164:in`converge\_state\_and\_update'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:90:in
`execute'", "/usr/share/logstash/logstash-core/lib/logstash/runner.rb:348:in`block in execute'", "/usr/share/logstash/vendor/bundle/jruby/2.3.0/gems/stud-0.0.23/lib/st
ud/task.rb:24:in `block in initialize'"]}
[2018-04-12T11:05:30,646][INFO][logstash.modules.scaffold] Initializing module {:module\_name=\>"fb\_apache", :directory=\>"/usr/share/logstash/modules/fb\_apache/configura
tion"}
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [April 12, 2018, 2:12pm UTC](https://discuss.elastic.co/t/error-while-starting-logstash-agent-in-version-6-2-3/127816/2 "2018-04-12T14:12:17Z")
You probably have a garbage character at the very beginning of your config file, possibly a byte-order mark. Check in a hex editor.
---
### Author:  [@zqc0512](https://discuss.elastic.co/u/zqc0512)
#### Post date: [April 13, 2018, 6:59am UTC](https://discuss.elastic.co/t/error-while-starting-logstash-agent-in-version-6-2-3/127816/3 "2018-04-13T06:59:40Z")
like as the pipen configure error
output your .conf file.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [May 11, 2018, 6:59am UTC](https://discuss.elastic.co/t/error-while-starting-logstash-agent-in-version-6-2-3/127816/4 "2018-05-11T06:59:44Z")
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