# Problem in installing ingest attachment plugin ES 5.5.1

**URL:** <https://discuss.elastic.co/t/problem-in-installing-ingest-attachment-plugin-es-5-5-1/102093>\
**Category:** Elasticsearch\
**Created:** [September 28, 2017, 10:14am UTC](https://discuss.elastic.co/t/problem-in-installing-ingest-attachment-plugin-es-5-5-1/102093 "2017-09-28T10:14:37Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Aamir](https://avatars.discourse-cdn.com/v4/letter/a/e9bcb4/32.png) [@Aamir](https://discuss.elastic.co/u/Aamir)\
**Post date:** [September 28, 2017, 10:14am UTC](https://discuss.elastic.co/t/problem-in-installing-ingest-attachment-plugin-es-5-5-1/102093/1 "2017-09-28T10:14:38Z")

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Hey,

i am facing below exception while installing ingest attachment on windows 10

elasticsearch\bin \> elasticsearch-plugin install ingest-attachment

Exception in thread "main" javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target  
at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)  
at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1949)  
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:302)  
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:296)  
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1514)  
at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)  
at sun.security.ssl.Handshaker.processLoop(Handshaker.java:1026)  
at sun.security.ssl.Handshaker.process\_record(Handshaker.java:961)  
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062)  
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)  
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)  
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387)  
at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)  
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)  
at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:153)  
at org.elasticsearch.plugins.InstallPluginCommand.urlExists(InstallPluginCommand.java:300)  
at org.elasticsearch.plugins.InstallPluginCommand.getElasticUrl(InstallPluginCommand.java:267)  
at org.elasticsearch.plugins.InstallPluginCommand.download(InstallPluginCommand.java:223)  
at org.elasticsearch.plugins.InstallPluginCommand.execute(InstallPluginCommand.java:215)  
at org.elasticsearch.plugins.InstallPluginCommand.execute(InstallPluginCommand.java:201)  
at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:67)  
at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:122)  
at org.elasticsearch.cli.MultiCommand.execute(MultiCommand.java:69)  
at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:122)  
at org.elasticsearch.cli.Command.main(Command.java:88)  
at org.elasticsearch.plugins.PluginCli.main(PluginCli.java:47)  
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target  
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:387)  
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292)  
at sun.security.validator.Validator.validate(Validator.java:260)  
at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324)  
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229)  
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124)  
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1496)  
... 21 more  
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target  
at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141)  
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126)  
at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280)  
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:382)  
... 27 more

can anyone help what could be the reason of above exception?

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<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [September 28, 2017, 10:43am UTC](https://discuss.elastic.co/t/problem-in-installing-ingest-attachment-plugin-es-5-5-1/102093/2 "2017-09-28T10:43:53Z")

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Please format your code using `</>` icon as explained in [this guide](https://discuss.elastic.co/t/about-the-elasticsearch-category/21). It will make your post more readable.

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May be this is related?

> <https://github.com/elastic/elasticsearch/issues/14373>

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [October 26, 2017, 10:51am UTC](https://discuss.elastic.co/t/problem-in-installing-ingest-attachment-plugin-es-5-5-1/102093/3 "2017-10-26T10:51:10Z")

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