Issue observed while trying to start the Logstash in ELK stack 7.5

[anirbandas]

While trying to start the logstash in ELK Stack 7.5 , i am getting the below error related to java.lang.ClassNotFoundException.
C:\Users\xeadmin\Desktop\work>logstash -f logstash.conf
Java HotSpot(TM) 64-Bit Server VM warning: Option UseConcMarkSweepGC was depreca
ted in version 9.0 and will likely be removed in a future release.
Error: Could not find or load main class STACK\logstash-7.5.0
Caused by: java.lang.ClassNotFoundException: STACK\logstash-7.5.0

can anybody please help me on this issue.

[VietCong]

Did you Try to use definite file path for logstash.conf? If so, can you share content of the file?

[anirbandas]

please find the configuration of my logtash.conf file . Elastic search, Kibana and logstash are running on the same system.

input {
stdin {}
}

output {
elasticsearch {
hosts => ["localhost:9200"]
index => "indextest"
}
}

[VietCong]

Something that sticks out to me is that you dont have any filter. Can you try adding filter {} and run it again?