I have installed logstash 5.5.1 using .tar.
The problem is only installing plug-ins.
I'm geting this error:
/logstash-5.5.1> ./bin/logstash-plugin install file:///tmp/tcp-plugin.zip
Installing file: /tmp/tcp-plugin.zip
ERROR: An error occured when installing the: file:///tmp/tcp-plugin.zip, to have more information about the error add a DEBUG=1 before running the command., message: Could not find gem 'logstash-core (>= 0) java' in source at ./logstash-core.
Source does not contain any versions of 'logstash-core (>= 0) java'
I have tried a lot of steps, but didn't find anything that worked.