a plugin had an unrecoverable error, will restart plugin

[robinmedland]

I am using this plugin in logstash, when i send a message to a topic i get this error in my logstash.

[2018-10-29T12:32:01,545][INFO ][logstash.agent ] Successfully started Logstash API endpoint {:port=>9600} [2018-10-29T12:33:25,933][ERROR][logstash.pipeline ] A plugin had an unrecoverable error. Will restart this plugin. Pipeline_id:test Plugin: <LogStash::Inputs::Mqtt topic=>"Temp", id=>"927edf5a640ae69f98f5d0b257e350a084fb548c257e946aa98bb0e2e6e3c823", enable_metric=>true, codec=><LogStash::Codecs::Plain id=>"plain_7991415a-8e06-4683-b4b7-ed87a3d7bbfd", enable_metric=>true, charset=>"UTF-8">, mqttHost=>"localhost", port=>1883, ssl=>false, client_id=>"logstash-mqtt-input5zts", clean_session=>true, qos=>0> Error: Direct event field references (i.e. event['field']) have been disabled infavor of using event get and set methods (e.g. event.get('field')). Please consultthe Logstash 5.0 breaking changes documentation for more details. Exception: NoMethodError Stack: C:/logstash/logstash-6.4.2/logstash-core/lib/logstash/event.rb:43:in method_missing' C:/logstash/logstash-6.4.2/vendor/bundle/jruby/2.3.0/gems/logstash-input-mqtt-0.0.2/lib/logstash/inputs/mqtt.rb:63:inblock in run' C:/logstash/logstash-6.4.2/vendor/bundle/jruby/2.3.0/gems/logstash-codec-plain-3.0.6/lib/logstash/codecs/plain.rb:35:in decode' C:/logstash/logstash-6.4.2/vendor/bundle/jruby/2.3.0/gems/logstash-input-mqtt-0.0.2/lib/logstash/inputs/mqtt.rb:62:inblock in run' C:/logstash/logstash-6.4.2/vendor/bundle/jruby/2.3.0/gems/mqtt-0.5.0/lib/mqtt/client.rb:405:in block in get' C:/logstash/logstash-6.4.2/vendor/bundle/jruby/2.3.0/gems/mqtt-0.5.0/lib/mqtt/client.rb:437:inblock in get_packet' org/jruby/RubyKernel.java:1292:in loop' C:/logstash/logstash-6.4.2/vendor/bundle/jruby/2.3.0/gems/mqtt-0.5.0/lib/mqtt/client.rb:435:inget_packet' C:/logstash/logstash-6.4.2/vendor/bundle/jruby/2.3.0/gems/mqtt-0.5.0/lib/mqtt/client.rb:404:in get' C:/logstash/logstash-6.4.2/vendor/bundle/jruby/2.3.0/gems/logstash-input-mqtt-0.0.2/lib/logstash/inputs/mqtt.rb:61:inrun' C:/logstash/logstash-6.4.2/logstash-core/lib/logstash/pipeline.rb:409:in inputworker' C:/logstash/logstash-6.4.2/logstash-core/lib/logstash/pipeline.rb:403:inblock instart_input'

[jmcarvalho]

Hi @robinmedland! I am trying to use this plugin but I am getting the same error as you. Did you manage to solve this?