# Unable to start logstash getting error
**URL:** https://discuss.elastic.co/t/unable-to-start-logstash-getting-error/126093
**Category:** Logstash
**Created:** [March 29, 2018, 12:55pm UTC](https://discuss.elastic.co/t/unable-to-start-logstash-getting-error/126093 "2018-03-29T12:55:09Z")
**Posts on this page:** 1
**Showing post:** 21
### Author:  [@Suman\_Reddy1](https://discuss.elastic.co/u/Suman_Reddy1)
#### Post date: [April 6, 2018, 12:40pm UTC](https://discuss.elastic.co/t/unable-to-start-logstash-getting-error/126093/21 "2018-04-06T12:40:09Z")
try below.
`logstash -e "input {stdin {}}output {stdout {}}" --debug`
Everything looks fine to me.. Some environment is the issue, coz- am able to run w/o any issues. @camarar also able to start logstash.
I feel something is wrong with your Java/Logstash. Dont mind but try a new copy of logstash. Lets give it a try. I know thats not a solution, but we can pinpoint that, the problem is with the installation or something else.
> [@Exception while starting Logstash \[LoadError: load error: jopenssl/load -- java.lang.VerifyError: class org.bouncycastle.asn1.ASN1Primitive overrides final method equals\]](https://discuss.elastic.co/t/exception-while-starting-logstash-loaderror-load-error-jopenssl-load-java-lang-verifyerror-class-org-bouncycastle-asn1-asn1primitive-overrides-final-method-equals/51024):
>
> I am getting below exception while starting logstash [logstash-1.5.3]. Can any one please help me. LoadError: load error: jopenssl/load -- java.lang.VerifyError: class org.bouncycastle.asn1.ASN1Primitive overrides final method equals.(Ljava/lang/Object;)Z require at org/jruby/RubyKernel.java:1072 (root) at /home/release/release\_independent/elk/logstash/logstash-1.5.3/vendor/jruby/lib/ruby/shared/openssl.rb:1 require at org/jruby/RubyKernel.java:1072 (root) at /home/release/release\_independe…
>
>
> \- Version: logstash-2.4.0 and 5.5.0
> \- OS: macOS Sierra 10.12.5
>
> \- Steps to re…produce:
> Command: bin/logstash or bin/logstash -f pipeline.conf (you don't even need to specify the filename and it blows up)
>
> \- JDK:
> ls -l /Library/Java/JavaVirtualMachines/
> total 0
> drwxr-xr-x 3 root wheel 102 Sep 21 2016 jdk1.8.0\_101.jdk
>
> Issue:
> LoadError: load error: jopenssl/load -- java.lang.NoClassDefFoundError: org/bouncycastle/crypto/params/AsymmetricKeyParameter
> require at org/jruby/RubyKernel.java:1040
> (root) at /Users/nand/Development/elk/logstash-2.4.0/vendor/jruby/lib/ruby/shared/openssl.rb:1
> require at org/jruby/RubyKernel.java:1040
> (root) at /Users/nand/Development/elk/logstash-2.4.0/vendor/bundle/jruby/1.9/gems/logstash-core-2.4.0-java/lib/logstash/patches/stronger\_openssl\_defaults.rb:1
> require at org/jruby/RubyKernel.java:1040
> (root) at /Users/nand/Development/elk/logstash-2.4.0/vendor/bundle/jruby/1.9/gems/logstash-core-2.4.0-java/lib/logstash/patches/stronger\_openssl\_defaults.rb:2
> require at org/jruby/RubyKernel.java:1040
> (root) at /Users/nand/Development/elk/logstash-2.4.0/vendor/bundle/jruby/1.9/gems/logstash-core-2.4.0-java/lib/logstash/patches.rb:1
> require at org/jruby/RubyKernel.java:1040
> (root) at /Users/nand/Development/elk/logstash-2.4.0/vendor/bundle/jruby/1.9/gems/logstash-core-2.4.0-java/lib/logstash/patches.rb:5
> require at org/jruby/RubyKernel.java:1040
> (root) at /Users/nand/Development/elk/logstash-2.4.0/lib/bootstrap/environment.rb:68
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