# Logstash 2.1 error on greater than
**URL:** https://discuss.elastic.co/t/logstash-2-1-error-on-greater-than/35950
**Category:** Logstash
**Created:** [November 30, 2015, 8:47pm UTC](https://discuss.elastic.co/t/logstash-2-1-error-on-greater-than/35950 "2015-11-30T20:47:01Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Gabriel\_Rosca](https://discuss.elastic.co/u/Gabriel_Rosca)
#### Post date: [November 30, 2015, 8:47pm UTC](https://discuss.elastic.co/t/logstash-2-1-error-on-greater-than/35950/1 "2015-11-30T20:47:01Z")
Hi guys,
My logstash crash after I upgrade from 1.5 to 2.1 with the bellow error:
NoMethodError: undefined method `\>' for nil:NilClass
output\_func at (eval):529
outputworker at /opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-core-2.1.0-java/lib/logstash/pipeline.rb:276
start\_outputs at /opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-core-2.1.0-java/lib/logstash/pipeline.rb:193
if "metric" in [tags] {
if [events.count] \> 3 {
stdout {
codec =\> line {
format =\> "rate: %{events.count} "
}
}
}
}
---
### Author:  [@Gabriel\_Rosca](https://discuss.elastic.co/u/Gabriel_Rosca)
#### Post date: [November 30, 2015, 9:41pm UTC](https://discuss.elastic.co/t/logstash-2-1-error-on-greater-than/35950/2 "2015-11-30T21:41:35Z")
Looks like the problem was with the DOT field name. I had to update my config
if "metric" in [tags] {
if [events][count] \>= 3 {
stdout {
codec =\> line {
format =\> "rate: %{[events][count]}"
}
}
}
}
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 5:20am UTC](https://discuss.elastic.co/t/logstash-2-1-error-on-greater-than/35950/3 "2017-07-06T05:20:41Z")