# TypeError: no implicit conversion from nil to integer **URL:** \ **Category:** Logstash\ **Created:** [December 14, 2018, 6:21pm UTC](https://discuss.elastic.co/t/typeerror-no-implicit-conversion-from-nil-to-integer/160950 "2018-12-14T18:21:18Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Samvid\_Kulkarni](https://avatars.discourse-cdn.com/v4/letter/s/439d5e/32.png) [@Samvid\_Kulkarni](https://discuss.elastic.co/u/Samvid_Kulkarni)\ **Post date:** [December 14, 2018, 6:21pm UTC](https://discuss.elastic.co/t/typeerror-no-implicit-conversion-from-nil-to-integer/160950/1 "2018-12-14T18:21:18Z")
I am getting this error and I am not able to understand what it means. i am parsing CISCO ASA logs and I am getting this error. Below is my config file. ``` input { file { path => "/⁨Users⁩/samvidkulkarni⁩/Desktop⁩/input⁩/asa.txt" start_position => "beginning" } } filter { grok { match => ["message", "%{TIMESTAMP_ISO8601:timestamp}\|\|%{NUMBER:syslog_cat}\|\|%{NUMBER:syslog_severity}\|\|%{IP:client}\|\|%{GREEDYDATA:message}"] } grok { match => [ "message", "%{CISCOFW106001}", "message", "%{CISCOFW106006_106007_106010}", "message", "%{CISCOFW106014}", "message", "%{CISCOFW106015}", "message", "%{CISCOFW106021}", "message", "%{CISCOFW106023}", "message", "%{CISCOFW106100}", "message", "%{CISCOFW110002}", "message", "%{CISCOFW302010}", "message", "%{CISCOFW302013_302014_302015_302016}", "message", "%{CISCOFW302020_302021}", "message", "%{CISCOFW305011}", "message", "%{CISCOFW313001_313004_313008}", "message", "%{CISCOFW313005}", "message", "%{CISCOFW402117}", "message", "%{CISCOFW402119}", "message", "%{CISCOFW419001}", "message", "%{CISCOFW419002}", "message", "%{CISCOFW500004}", "message", "%{CISCOFW602303_602304}", "message", "%{CISCOFW710001_710002_710003_710005_710006}", "message", "%{CISCOFW713172}", "message", "%{CISCOFW733100}" ] } } output { elasticsearch { hosts => ["localhost:9200"] manage_template => false index => "firewall-%{+YYYY.MM.dd}" } } ``` Below is the output on the console. ``` [2018-12-14T10:19:09,739][INFO][logstash.outputs.elasticsearch] New Elasticsearch output {:class=>"LogStash::Outputs::ElasticSearch", :hosts=>["//localhost:9200"]} [2018-12-14T10:19:16,061][ERROR][logstash.pipeline] Error registering plugin {:pipeline_id=>"main", :plugin=>"<LogStash::Inputs::File start_position=>\"beginning\", path=>[\"/⁨Users⁩/samvidkulkarni⁩/Desktop⁩⁩/input⁩/asa.txt\"], id=>\"0c79863f76c432a5cc655e9f6cee11085f24b17e364647302db720ad5936d743\", enable_metric=>true, codec=><LogStash::Codecs::Plain id=>\"plain_a69fa7a5-5c17-4a0d-bf86-211f8db99412\", enable_metric=>true, charset=>\"UTF-8\">, stat_interval=>1.0, discover_interval=>15, sincedb_write_interval=>15.0, delimiter=>\"\\n\", close_older=>3600.0, mode=>\"tail\", file_completed_action=>\"delete\", sincedb_clean_after=>1209600.0, file_chunk_size=>32768, file_chunk_count=>140737488355327, file_sort_by=>\"last_modified\", file_sort_direction=>\"asc\">", :error=>"no implicit conversion from nil to integer", :thread=>"#<Thread:0x62ce4127 run>"} [2018-12-14T10:19:16,764][ERROR][logstash.pipeline] Pipeline aborted due to error {:pipeline_id=>"main", :exception=>#<TypeError: no implicit conversion from nil to integer>, :backtrace=>["org/jruby/RubyString.java:2995:in `[]'", "uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/pathname.rb:44:in `chop_basename'", "uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/pathname.rb:240:in `relative?'", "/Users/samvidkulkarni/Downloads/logstash-6.5.3/vendor/bundle/jruby/2.3.0/gems/logstash-input-file-4.1.8/lib/logstash/inputs/file.rb:268:in `block in register'", "org/jruby/RubyArray.java:1734:in `each'", "/Users/samvidkulkarni/Downloads/logstash-6.5.3/vendor/bundle/jruby/2.3.0/gems/logstash-input-file-4.1.8/lib/logstash/inputs/file.rb:267:in `register'", "/Users/samvidkulkarni/Downloads/logstash-6.5.3/logstash-core/lib/logstash/pipeline.rb:242:in `register_plugin'", "/Users/samvidkulkarni/Downloads/logstash-6.5.3/logstash-core/lib/logstash/pipeline.rb:253:in `block in register_plugins'", "org/jruby/RubyArray.java:1734:in `each'", "/Users/samvidkulkarni/Downloads/logstash-6.5.3/logstash-core/lib/logstash/pipeline.rb:253:in `register_plugins'", "/Users/samvidkulkarni/Downloads/logstash-6.5.3/logstash-core/lib/logstash/pipeline.rb:396:in `start_inputs'", "/Users/samvidkulkarni/Downloads/logstash-6.5.3/logstash-core/lib/logstash/pipeline.rb:294:in `start_workers'", "/Users/samvidkulkarni/Downloads/logstash-6.5.3/logstash-core/lib/logstash/pipeline.rb:200:in `run'", "/Users/samvidkulkarni/Downloads/logstash-6.5.3/logstash-core/lib/logstash/pipeline.rb:160:in `block in start'"], :thread=>"#<Thread:0x62ce4127 run>"} [2018-12-14T10:19:16,804][ERROR][logstash.agent] Failed to execute action {:id=>:main, :action_type=>LogStash::ConvergeResult::FailedAction, :message=>"Could not execute action: PipelineAction::Create<main>, action_result: false", :backtrace=>nil} ``` I dont understand what is this error. This same code was working in previous version of logstash is not woking for latest one. i have logstash 6.5.3. i did clean installation (not upgrade) yesterday. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [January 11, 2019, 6:21pm UTC](https://discuss.elastic.co/t/typeerror-no-implicit-conversion-from-nil-to-integer/160950/2 "2019-01-11T18:21:32Z")
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