getting below error if I copy the logstash config file provided in appendix in pdf
Oct 28 13:13:47 ip-172-32-2-49.us-east-2.compute.internal logstash[3847]: create at org/logstash/execution/ConvergeResultExt.java:129
Oct 28 13:13:47 ip-172-32-2-49.us-east-2.compute.internal logstash[3847]: add at org/logstash/execution/ConvergeResultExt.java:57
Oct 28 13:13:47 ip-172-32-2-49.us-east-2.compute.internal logstash[3847]: converge_state at /usr/share/logstash/logstash-core/lib/logstash/agent.rb:355
Oct 28 13:13:47 ip-172-32-2-49.us-east-2.compute.internal logstash[3847]: [2020-10-28T13:13:47,675][ERROR][logstash.agent ] An exception happened when converging configuration {:exception=>LogStash::Error, :message=>“Don’t know how to handle Java::JavaLang::IllegalStateException for PipelineAction::Create<main>”, :backtrace=>[“org/logstash/execution/ConvergeResultExt.java:129:in create'", "org/logstash/execution/ConvergeResultExt.java:57:in add’”, “/usr/share/logstash/logstash-core/lib/logstash/agent.rb:355:in block in converge_state'"]} Oct 28 13:13:47 ip-172-32-2-49.us-east-2.compute.internal logstash[3847]: [2020-10-28T13:13:47,684][FATAL][logstash.runner ] An unexpected error occurred! {:error=>#<LogStash::Error: Don't know how to handle Java::JavaLang::IllegalStateExceptionforPipelineAction::Create>, :backtrace=>["org/logstash/execution/ConvergeResultExt.java:129:in create’”, “org/logstash/execution/ConvergeResultExt.java:57:in add'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:355:in block in converge_state’”]}
Oct 28 13:13:47 ip-172-32-2-49.us-east-2.compute.internal logstash[3847]: [2020-10-28T13:13:47,736][ERROR][org.logstash.Logstash ] java.lang.IllegalStateException: Logstash stopped processing because of an error: (SystemExit) exit