# Elasticsearch-river-web plugin problem

**URL:** <https://discuss.elastic.co/t/elasticsearch-river-web-plugin-problem/22500>\
**Category:** Elasticsearch\
**Created:** [March 3, 2015, 9:42pm UTC](https://discuss.elastic.co/t/elasticsearch-river-web-plugin-problem/22500 "2015-03-03T21:42:08Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Ali\_Lotfdar](https://avatars.discourse-cdn.com/v4/letter/a/f19dbf/32.png) [@Ali\_Lotfdar](https://discuss.elastic.co/u/Ali_Lotfdar)\
**Post date:** [March 3, 2015, 9:42pm UTC](https://discuss.elastic.co/t/elasticsearch-river-web-plugin-problem/22500/1 "2015-03-03T21:42:08Z")

</div>

Hello All,

link :[https://github.com/codelibs/elasticsearch-river-web](https://github.com/codelibs/elasticsearch-river-web)  
I am following instruction of using river-web plugin, but I encounter with  
this error: ()

[2015-03-03 16:31:29,075][WARN][river] [New Goblin]  
failed to create river [web][my\_web]  
org.elasticsearch.common.settings.NoClassSettingsException: Failed to load  
class with value [web]  
at org.elasticsearch.river.RiverModule.loadTypeModule(RiverModule.java:87)  
at org.elasticsearch.river.RiverModule.spawnModules(RiverModule.java:58)  
at  
org.elasticsearch.common.inject.ModulesBuilder.add(ModulesBuilder.java:44)  
at org.elasticsearch.river.RiversService.createRiver(RiversService.java:137)  
at  
org.elasticsearch.river.RiversService$ApplyRivers$2.onResponse(RiversService.java:275)  
at  
org.elasticsearch.river.RiversService$ApplyRivers$2.onResponse(RiversService.java:269)  
at  
org.elasticsearch.action.support.TransportAction$ThreadedActionListener$1.run(TransportAction.java:113)  
at  
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)  
at  
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)  
at java.lang.Thread.run(Thread.java:745)  
Caused by: java.lang.ClassNotFoundException: web  
at java.net.URLClassLoader$1.run(URLClassLoader.java:372)  
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)  
at java.security.AccessController.doPrivileged(Native Method)  
at java.net.URLClassLoader.findClass(URLClassLoader.java:360)  
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)  
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)  
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)  
at org.elasticsearch.river.RiverModule.loadTypeModule(RiverModule.java:73)  
... 9 more

I check file access and modified as below:

-rwxr-xr-x 1 intdev6 staff 4467 3 Mar 12:26 aopalliance-1.0.jar  
-rwxr-xr-x 1 intdev6 staff 95536 3 Mar 12:26  
apache-mime4j-core-0.7.2.jar  
-rwxr-xr-x 1 intdev6 staff 304810 3 Mar 12:26  
apache-mime4j-dom-0.7.2.jar  
-rwxr-xr-x 1 intdev6 staff 342664 3 Mar 12:26 asm-debug-all-4.1.jar  
-rwxr-xr-x 1 intdev6 staff 117099 3 Mar 12:26 aspectjrt-1.8.0.jar  
-rwxr-xr-x 1 intdev6 staff 229116 3 Mar 12:26 bcmail-jdk15-1.45.jar  
-rwxr-xr-x 1 intdev6 staff 1663318 3 Mar 12:26 bcprov-jdk15-1.45.jar  
-rwxr-xr-x 1 intdev6 staff 92027 3 Mar 12:26 boilerpipe-1.1.0.jar  
-rwxr-xr-x 1 intdev6 staff 263965 3 Mar 12:26 commons-codec-1.9.jar  
-rwxr-xr-x 1 intdev6 staff 365552 3 Mar 12:26  
commons-compress-1.8.1.jar  
-rwxr-xr-x 1 intdev6 staff 305001 3 Mar 12:26  
commons-httpclient-3.1.jar  
-rwxr-xr-x 1 intdev6 staff 185140 3 Mar 12:26 commons-io-2.4.jar  
-rwxr-xr-x 1 intdev6 staff 412739 3 Mar 12:26 commons-lang3-3.3.2.jar  
-rwxr-xr-x 1 intdev6 staff 62050 3 Mar 12:26 commons-logging-1.1.3.jar  
-rwxr-xr-x 1 intdev6 staff 108036 3 Mar 12:26 commons-pool2-2.2.jar  
-rwxr-xr-x 1 intdev6 staff 73902 3 Mar 12:26  
elasticsearch-river-web-1.4.0.jar  
-rwxr-xr-x 1 intdev6 staff 12531 3 Mar 12:26  
elasticsearch-util-0.3.0.jar  
-rwxr-xr-x 1 intdev6 staff 218444 3 Mar 12:26 fontbox-1.8.7.jar  
-rwxr-xr-x 1 intdev6 staff 590533 3 Mar 12:26 httpclient-4.3.5.jar  
-rwxr-xr-x 1 intdev6 staff 149779 3 Mar 12:26  
httpclient-cache-4.3.5.jar  
-rwxr-xr-x 1 intdev6 staff 282269 3 Mar 12:26 httpcore-4.3.2.jar  
-rwxr-xr-x 1 intdev6 staff 37277 3 Mar 12:26 httpmime-4.3.5.jar  
-rwxr-xr-x 1 intdev6 staff 9709288 3 Mar 12:26 icu4j-53.1.jar  
-rwxr-xr-x 1 intdev6 staff 689486 3 Mar 12:26 isoparser-1.0.2.jar  
-rwxr-xr-x 1 intdev6 staff 85452 3 Mar 12:26 java-libpst-0.8.1.jar  
-rwxr-xr-x 1 intdev6 staff 471005 3 Mar 12:26 javassist-3.4.ga.jar  
-rwxr-xr-x 1 intdev6 staff 396231 3 Mar 12:26 jcifs-1.3.17.jar  
-rwxr-xr-x 1 intdev6 staff 2254 3 Mar 12:26 jcip-annotations-1.0.jar  
-rwxr-xr-x 1 intdev6 staff 153253 3 Mar 12:26 jdom-1.0.jar  
-rwxr-xr-x 1 intdev6 staff 50978 3 Mar 12:26 jempbox-1.8.7.jar  
-rwxr-xr-x 1 intdev6 staff 97405 3 Mar 12:26 jhighlight-1.0.1.jar  
-rwxr-xr-x 1 intdev6 staff 104458 3 Mar 12:26 jlha-0.06-05.jar  
-rwxr-xr-x 1 intdev6 staff 66536 3 Mar 12:26 jmatio-1.0.jar  
-rwxr-xr-x 1 intdev6 staff 297387 3 Mar 12:26 jsoup-1.7.3.jar  
-rwxr-xr-x 1 intdev6 staff 220813 3 Mar 12:26  
juniversalchardet-1.0.3.jar  
-rwxr-xr-x 1 intdev6 staff 211185 3 Mar 12:26  
metadata-extractor-2.6.2.jar  
-rwxr-xr-x 1 intdev6 staff 125150 3 Mar 12:26 nekohtml-1.9.21.jar  
-rwxr-xr-x 1 intdev6 staff 4234305 3 Mar 12:26 netcdf-4.2.20.jar  
-rwxr-xr-x 1 intdev6 staff 166976 3 Mar 12:26  
ognl-2.6.9-patch-20090427.jar  
-rwxr-xr-x 1 intdev6 staff 4071607 3 Mar 12:26 pdfbox-1.8.7.jar  
-rwxr-xr-x 1 intdev6 staff 2054958 3 Mar 12:26 poi-3.11-beta2.jar  
-rwxr-xr-x 1 intdev6 staff 1111398 3 Mar 12:26 poi-ooxml-3.11-beta2.jar  
-rwxr-xr-x 1 intdev6 staff 5161257 3 Mar 12:26  
poi-ooxml-schemas-3.11-beta2.jar  
-rwxr-xr-x 1 intdev6 staff 1288743 3 Mar 12:26  
poi-scratchpad-3.11-beta2.jar  
-rwxr-xr-x 1 intdev6 staff 219683 3 Mar 12:26 rome-1.0.jar  
-rwxr-xr-x 1 intdev6 staff 392952 3 Mar 12:26 s2-extension-2.4.46.jar  
-rwxr-xr-x 1 intdev6 staff 675602 3 Mar 12:26 s2-framework-2.4.46.jar  
-rwxr-xr-x 1 intdev6 staff 277832 3 Mar 12:26 s2-robot-0.8.0.jar  
-rwxr-xr-x 1 intdev6 staff 615450 3 Mar 12:26 s2-tiger-2.4.46.jar  
-rwxr-xr-x 1 intdev6 staff 278281 3 Mar 12:26 serializer-2.7.1.jar  
-rwxr-xr-x 1 intdev6 staff 29257 3 Mar 12:26 slf4j-api-1.7.7.jar  
-rwxr-xr-x 1 intdev6 staff 8870 3 Mar 12:26 slf4j-log4j12-1.7.7.jar  
-rwxr-xr-x 1 intdev6 staff 26514 3 Mar 12:26 stax-api-1.0.1.jar  
-rwxr-xr-x 1 intdev6 staff 90722 3 Mar 12:26 tagsoup-1.2.1.jar  
-rwxr-xr-x 1 intdev6 staff 507965 3 Mar 12:26 tika-core-1.6.jar  
-rwxr-xr-x 1 intdev6 staff 557502 3 Mar 12:26 tika-parsers-1.6.jar  
-rwxr-xr-x 1 intdev6 staff 210217 3 Mar 12:26 unidataCommon-4.2.20.jar  
-rwxr-xr-x 1 intdev6 staff 76323 3 Mar 12:26 vorbis-java-core-0.6.jar  
-rwxr-xr-x 1 intdev6 staff 22962 3 Mar 12:26 vorbis-java-tika-0.6.jar  
-rwxr-xr-x 1 intdev6 staff 3176148 3 Mar 12:26 xalan-2.7.1.jar  
-rwxr-xr-x 1 intdev6 staff 1363159 3 Mar 12:26 xercesImpl-2.10.0.jar  
-rwxr-xr-x 1 intdev6 staff 220536 3 Mar 12:26 xml-apis-1.4.01.jar  
-rwxr-xr-x 1 intdev6 staff 2730866 3 Mar 12:26 xmlbeans-2.6.0.jar  
-rwxr-xr-x 1 intdev6 staff 117333 3 Mar 12:26 xmpcore-5.1.2.jar  
-rwxr-xr-x 1 intdev6 staff 99555 3 Mar 12:26 xz-1.5.jar

also java version is :  
java version "1.8.0\_31"

Java(TM) SE Runtime Environment (build 1.8.0\_31-b13)  
Java HotSpot(TM) 64-Bit Server VM (build 25.31-b07, mixed mode)

thanks to help me to find the solution for solving this problem.

Best Regard,  
Ali

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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:** [March 3, 2015, 9:46pm UTC](https://discuss.elastic.co/t/elasticsearch-river-web-plugin-problem/22500/2 "2015-03-03T21:46:29Z")

</div>

Sounds like the plugin is not loaded. Restart Elasticsearch and check logs and run GET /\_cat/plugins?v

Note sure how you installed the plugin and where all the files you listed are located.

David

> Le 3 mars 2015 à 22:42, Ali Lotfdar [ali.lotfdar58@gmail.com](mailto:ali.lotfdar58@gmail.com) a écrit :
> 
> Hello All,
> 
> link :[GitHub - codelibs/elasticsearch-river-web: Web Crawler for Elasticsearch](https://github.com/codelibs/elasticsearch-river-web)  
> I am following instruction of using river-web plugin, but I encounter with this error: ()
> 
> [2015-03-03 16:31:29,075][WARN][river] [New Goblin] failed to create river [web][my\_web]  
> org.elasticsearch.common.settings.NoClassSettingsException: Failed to load class with value [web]  
> at org.elasticsearch.river.RiverModule.loadTypeModule(RiverModule.java:87)  
> at org.elasticsearch.river.RiverModule.spawnModules(RiverModule.java:58)  
> at org.elasticsearch.common.inject.ModulesBuilder.add(ModulesBuilder.java:44)  
> at org.elasticsearch.river.RiversService.createRiver(RiversService.java:137)  
> at org.elasticsearch.river.RiversService$ApplyRivers$2.onResponse(RiversService.java:275)  
> at org.elasticsearch.river.RiversService$ApplyRivers$2.onResponse(RiversService.java:269)  
> at org.elasticsearch.action.support.TransportAction$ThreadedActionListener$1.run(TransportAction.java:113)  
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)  
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)  
> at java.lang.Thread.run(Thread.java:745)  
> Caused by: java.lang.ClassNotFoundException: web  
> at java.net.URLClassLoader$1.run(URLClassLoader.java:372)  
> at java.net.URLClassLoader$1.run(URLClassLoader.java:361)  
> at java.security.AccessController.doPrivileged(Native Method)  
> at java.net.URLClassLoader.findClass(URLClassLoader.java:360)  
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)  
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)  
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)  
> at org.elasticsearch.river.RiverModule.loadTypeModule(RiverModule.java:73)  
> ... 9 more
> 
> I check file access and modified as below:
> 
> -rwxr-xr-x 1 intdev6 staff 4467 3 Mar 12:26 aopalliance-1.0.jar  
> -rwxr-xr-x 1 intdev6 staff 95536 3 Mar 12:26 apache-mime4j-core-0.7.2.jar  
> -rwxr-xr-x 1 intdev6 staff 304810 3 Mar 12:26 apache-mime4j-dom-0.7.2.jar  
> -rwxr-xr-x 1 intdev6 staff 342664 3 Mar 12:26 asm-debug-all-4.1.jar  
> -rwxr-xr-x 1 intdev6 staff 117099 3 Mar 12:26 aspectjrt-1.8.0.jar  
> -rwxr-xr-x 1 intdev6 staff 229116 3 Mar 12:26 bcmail-jdk15-1.45.jar  
> -rwxr-xr-x 1 intdev6 staff 1663318 3 Mar 12:26 bcprov-jdk15-1.45.jar  
> -rwxr-xr-x 1 intdev6 staff 92027 3 Mar 12:26 boilerpipe-1.1.0.jar  
> -rwxr-xr-x 1 intdev6 staff 263965 3 Mar 12:26 commons-codec-1.9.jar  
> -rwxr-xr-x 1 intdev6 staff 365552 3 Mar 12:26 commons-compress-1.8.1.jar  
> -rwxr-xr-x 1 intdev6 staff 305001 3 Mar 12:26 commons-httpclient-3.1.jar  
> -rwxr-xr-x 1 intdev6 staff 185140 3 Mar 12:26 commons-io-2.4.jar  
> -rwxr-xr-x 1 intdev6 staff 412739 3 Mar 12:26 commons-lang3-3.3.2.jar  
> -rwxr-xr-x 1 intdev6 staff 62050 3 Mar 12:26 commons-logging-1.1.3.jar  
> -rwxr-xr-x 1 intdev6 staff 108036 3 Mar 12:26 commons-pool2-2.2.jar  
> -rwxr-xr-x 1 intdev6 staff 73902 3 Mar 12:26 elasticsearch-river-web-1.4.0.jar  
> -rwxr-xr-x 1 intdev6 staff 12531 3 Mar 12:26 elasticsearch-util-0.3.0.jar  
> -rwxr-xr-x 1 intdev6 staff 218444 3 Mar 12:26 fontbox-1.8.7.jar  
> -rwxr-xr-x 1 intdev6 staff 590533 3 Mar 12:26 httpclient-4.3.5.jar  
> -rwxr-xr-x 1 intdev6 staff 149779 3 Mar 12:26 httpclient-cache-4.3.5.jar  
> -rwxr-xr-x 1 intdev6 staff 282269 3 Mar 12:26 httpcore-4.3.2.jar  
> -rwxr-xr-x 1 intdev6 staff 37277 3 Mar 12:26 httpmime-4.3.5.jar  
> -rwxr-xr-x 1 intdev6 staff 9709288 3 Mar 12:26 icu4j-53.1.jar  
> -rwxr-xr-x 1 intdev6 staff 689486 3 Mar 12:26 isoparser-1.0.2.jar  
> -rwxr-xr-x 1 intdev6 staff 85452 3 Mar 12:26 java-libpst-0.8.1.jar  
> -rwxr-xr-x 1 intdev6 staff 471005 3 Mar 12:26 javassist-3.4.ga.jar  
> -rwxr-xr-x 1 intdev6 staff 396231 3 Mar 12:26 jcifs-1.3.17.jar  
> -rwxr-xr-x 1 intdev6 staff 2254 3 Mar 12:26 jcip-annotations-1.0.jar  
> -rwxr-xr-x 1 intdev6 staff 153253 3 Mar 12:26 jdom-1.0.jar  
> -rwxr-xr-x 1 intdev6 staff 50978 3 Mar 12:26 jempbox-1.8.7.jar  
> -rwxr-xr-x 1 intdev6 staff 97405 3 Mar 12:26 jhighlight-1.0.1.jar  
> -rwxr-xr-x 1 intdev6 staff 104458 3 Mar 12:26 jlha-0.06-05.jar  
> -rwxr-xr-x 1 intdev6 staff 66536 3 Mar 12:26 jmatio-1.0.jar  
> -rwxr-xr-x 1 intdev6 staff 297387 3 Mar 12:26 jsoup-1.7.3.jar  
> -rwxr-xr-x 1 intdev6 staff 220813 3 Mar 12:26 juniversalchardet-1.0.3.jar  
> -rwxr-xr-x 1 intdev6 staff 211185 3 Mar 12:26 metadata-extractor-2.6.2.jar  
> -rwxr-xr-x 1 intdev6 staff 125150 3 Mar 12:26 nekohtml-1.9.21.jar  
> -rwxr-xr-x 1 intdev6 staff 4234305 3 Mar 12:26 netcdf-4.2.20.jar  
> -rwxr-xr-x 1 intdev6 staff 166976 3 Mar 12:26 ognl-2.6.9-patch-20090427.jar  
> -rwxr-xr-x 1 intdev6 staff 4071607 3 Mar 12:26 pdfbox-1.8.7.jar  
> -rwxr-xr-x 1 intdev6 staff 2054958 3 Mar 12:26 poi-3.11-beta2.jar  
> -rwxr-xr-x 1 intdev6 staff 1111398 3 Mar 12:26 poi-ooxml-3.11-beta2.jar  
> -rwxr-xr-x 1 intdev6 staff 5161257 3 Mar 12:26 poi-ooxml-schemas-3.11-beta2.jar  
> -rwxr-xr-x 1 intdev6 staff 1288743 3 Mar 12:26 poi-scratchpad-3.11-beta2.jar  
> -rwxr-xr-x 1 intdev6 staff 219683 3 Mar 12:26 rome-1.0.jar  
> -rwxr-xr-x 1 intdev6 staff 392952 3 Mar 12:26 s2-extension-2.4.46.jar  
> -rwxr-xr-x 1 intdev6 staff 675602 3 Mar 12:26 s2-framework-2.4.46.jar  
> -rwxr-xr-x 1 intdev6 staff 277832 3 Mar 12:26 s2-robot-0.8.0.jar  
> -rwxr-xr-x 1 intdev6 staff 615450 3 Mar 12:26 s2-tiger-2.4.46.jar  
> -rwxr-xr-x 1 intdev6 staff 278281 3 Mar 12:26 serializer-2.7.1.jar  
> -rwxr-xr-x 1 intdev6 staff 29257 3 Mar 12:26 slf4j-api-1.7.7.jar  
> -rwxr-xr-x 1 intdev6 staff 8870 3 Mar 12:26 slf4j-log4j12-1.7.7.jar  
> -rwxr-xr-x 1 intdev6 staff 26514 3 Mar 12:26 stax-api-1.0.1.jar  
> -rwxr-xr-x 1 intdev6 staff 90722 3 Mar 12:26 tagsoup-1.2.1.jar  
> -rwxr-xr-x 1 intdev6 staff 507965 3 Mar 12:26 tika-core-1.6.jar  
> -rwxr-xr-x 1 intdev6 staff 557502 3 Mar 12:26 tika-parsers-1.6.jar  
> -rwxr-xr-x 1 intdev6 staff 210217 3 Mar 12:26 unidataCommon-4.2.20.jar  
> -rwxr-xr-x 1 intdev6 staff 76323 3 Mar 12:26 vorbis-java-core-0.6.jar  
> -rwxr-xr-x 1 intdev6 staff 22962 3 Mar 12:26 vorbis-java-tika-0.6.jar  
> -rwxr-xr-x 1 intdev6 staff 3176148 3 Mar 12:26 xalan-2.7.1.jar  
> -rwxr-xr-x 1 intdev6 staff 1363159 3 Mar 12:26 xercesImpl-2.10.0.jar  
> -rwxr-xr-x 1 intdev6 staff 220536 3 Mar 12:26 xml-apis-1.4.01.jar  
> -rwxr-xr-x 1 intdev6 staff 2730866 3 Mar 12:26 xmlbeans-2.6.0.jar  
> -rwxr-xr-x 1 intdev6 staff 117333 3 Mar 12:26 xmpcore-5.1.2.jar  
> -rwxr-xr-x 1 intdev6 staff 99555 3 Mar 12:26 xz-1.5.jar
> 
> also java version is :  
> java version "1.8.0\_31"
> 
> Java(TM) SE Runtime Environment (build 1.8.0\_31-b13)  
> Java HotSpot(TM) 64-Bit Server VM (build 25.31-b07, mixed mode)
> 
> thanks to help me to find the solution for solving this problem.
> 
> ## Best Regard, Ali
> 
> You received this message because you are subscribed to the Google Groups "elasticsearch" group.  
> To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com).  
> To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/86f4a8d5-fb3a-469f-8aa6-0821357c0650%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/86f4a8d5-fb3a-469f-8aa6-0821357c0650%40googlegroups.com).  
> For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout).

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---

<div class="post-metadata">

**Author:** ![Ali\_Lotfdar](https://avatars.discourse-cdn.com/v4/letter/a/f19dbf/32.png) [@Ali\_Lotfdar](https://discuss.elastic.co/u/Ali_Lotfdar)\
**Post date:** [March 4, 2015, 1:51pm UTC](https://discuss.elastic.co/t/elasticsearch-river-web-plugin-problem/22500/3 "2015-03-04T13:51:42Z")

</div>

Thank you David, I restarted Elasticsearch it worked!

On Tuesday, March 3, 2015 at 4:46:56 PM UTC-5, David Pilato wrote:

> Sounds like the plugin is not loaded. Restart Elasticsearch and check logs  
> and run GET /\_cat/plugins?v
> 
> Note sure how you installed the plugin and where all the files you listed  
> are located.
> 
> David
> 
> Le 3 mars 2015 à 22:42, Ali Lotfdar \<[ali.lo...@gmail.com](mailto:ali.lo...@gmail.com) \<javascript:\>\> a  
> écrit :
> 
> Hello All,
> 
> link :[GitHub - codelibs/elasticsearch-river-web: Web Crawler for Elasticsearch](https://github.com/codelibs/elasticsearch-river-web)  
> I am following instruction of using river-web plugin, but I encounter with  
> this error: ()
> 
> [2015-03-03 16:31:29,075][WARN][river] [New Goblin]  
> failed to create river [web][my\_web]  
> org.elasticsearch.common.settings.NoClassSettingsException: Failed to load  
> class with value [web]  
> at org.elasticsearch.river.RiverModule.loadTypeModule(RiverModule.java:87)  
> at org.elasticsearch.river.RiverModule.spawnModules(RiverModule.java:58)  
> at  
> org.elasticsearch.common.inject.ModulesBuilder.add(ModulesBuilder.java:44)  
> at  
> org.elasticsearch.river.RiversService.createRiver(RiversService.java:137)  
> at  
> org.elasticsearch.river.RiversService$ApplyRivers$2.onResponse(RiversService.java:275)  
> at  
> org.elasticsearch.river.RiversService$ApplyRivers$2.onResponse(RiversService.java:269)  
> at  
> org.elasticsearch.action.support.TransportAction$ThreadedActionListener$1.run(TransportAction.java:113)  
> at  
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)  
> at  
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)  
> at java.lang.Thread.run(Thread.java:745)  
> Caused by: java.lang.ClassNotFoundException: web  
> at java.net.URLClassLoader$1.run(URLClassLoader.java:372)  
> at java.net.URLClassLoader$1.run(URLClassLoader.java:361)  
> at java.security.AccessController.doPrivileged(Native Method)  
> at java.net.URLClassLoader.findClass(URLClassLoader.java:360)  
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)  
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)  
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)  
> at org.elasticsearch.river.RiverModule.loadTypeModule(RiverModule.java:73)  
> ... 9 more
> 
> I check file access and modified as below:
> 
> -rwxr-xr-x 1 intdev6 staff 4467 3 Mar 12:26 aopalliance-1.0.jar  
> -rwxr-xr-x 1 intdev6 staff 95536 3 Mar 12:26  
> apache-mime4j-core-0.7.2.jar  
> -rwxr-xr-x 1 intdev6 staff 304810 3 Mar 12:26  
> apache-mime4j-dom-0.7.2.jar  
> -rwxr-xr-x 1 intdev6 staff 342664 3 Mar 12:26 asm-debug-all-4.1.jar  
> -rwxr-xr-x 1 intdev6 staff 117099 3 Mar 12:26 aspectjrt-1.8.0.jar  
> -rwxr-xr-x 1 intdev6 staff 229116 3 Mar 12:26 bcmail-jdk15-1.45.jar  
> -rwxr-xr-x 1 intdev6 staff 1663318 3 Mar 12:26 bcprov-jdk15-1.45.jar  
> -rwxr-xr-x 1 intdev6 staff 92027 3 Mar 12:26 boilerpipe-1.1.0.jar  
> -rwxr-xr-x 1 intdev6 staff 263965 3 Mar 12:26 commons-codec-1.9.jar  
> -rwxr-xr-x 1 intdev6 staff 365552 3 Mar 12:26  
> commons-compress-1.8.1.jar  
> -rwxr-xr-x 1 intdev6 staff 305001 3 Mar 12:26  
> commons-httpclient-3.1.jar  
> -rwxr-xr-x 1 intdev6 staff 185140 3 Mar 12:26 commons-io-2.4.jar  
> -rwxr-xr-x 1 intdev6 staff 412739 3 Mar 12:26 commons-lang3-3.3.2.jar  
> -rwxr-xr-x 1 intdev6 staff 62050 3 Mar 12:26  
> commons-logging-1.1.3.jar  
> -rwxr-xr-x 1 intdev6 staff 108036 3 Mar 12:26 commons-pool2-2.2.jar  
> -rwxr-xr-x 1 intdev6 staff 73902 3 Mar 12:26  
> elasticsearch-river-web-1.4.0.jar  
> -rwxr-xr-x 1 intdev6 staff 12531 3 Mar 12:26  
> elasticsearch-util-0.3.0.jar  
> -rwxr-xr-x 1 intdev6 staff 218444 3 Mar 12:26 fontbox-1.8.7.jar  
> -rwxr-xr-x 1 intdev6 staff 590533 3 Mar 12:26 httpclient-4.3.5.jar  
> -rwxr-xr-x 1 intdev6 staff 149779 3 Mar 12:26  
> httpclient-cache-4.3.5.jar  
> -rwxr-xr-x 1 intdev6 staff 282269 3 Mar 12:26 httpcore-4.3.2.jar  
> -rwxr-xr-x 1 intdev6 staff 37277 3 Mar 12:26 httpmime-4.3.5.jar  
> -rwxr-xr-x 1 intdev6 staff 9709288 3 Mar 12:26 icu4j-53.1.jar  
> -rwxr-xr-x 1 intdev6 staff 689486 3 Mar 12:26 isoparser-1.0.2.jar  
> -rwxr-xr-x 1 intdev6 staff 85452 3 Mar 12:26 java-libpst-0.8.1.jar  
> -rwxr-xr-x 1 intdev6 staff 471005 3 Mar 12:26 javassist-3.4.ga.jar  
> -rwxr-xr-x 1 intdev6 staff 396231 3 Mar 12:26 jcifs-1.3.17.jar  
> -rwxr-xr-x 1 intdev6 staff 2254 3 Mar 12:26 jcip-annotations-1.0.jar  
> -rwxr-xr-x 1 intdev6 staff 153253 3 Mar 12:26 jdom-1.0.jar  
> -rwxr-xr-x 1 intdev6 staff 50978 3 Mar 12:26 jempbox-1.8.7.jar  
> -rwxr-xr-x 1 intdev6 staff 97405 3 Mar 12:26 jhighlight-1.0.1.jar  
> -rwxr-xr-x 1 intdev6 staff 104458 3 Mar 12:26 jlha-0.06-05.jar  
> -rwxr-xr-x 1 intdev6 staff 66536 3 Mar 12:26 jmatio-1.0.jar  
> -rwxr-xr-x 1 intdev6 staff 297387 3 Mar 12:26 jsoup-1.7.3.jar  
> -rwxr-xr-x 1 intdev6 staff 220813 3 Mar 12:26  
> juniversalchardet-1.0.3.jar  
> -rwxr-xr-x 1 intdev6 staff 211185 3 Mar 12:26  
> metadata-extractor-2.6.2.jar  
> -rwxr-xr-x 1 intdev6 staff 125150 3 Mar 12:26 nekohtml-1.9.21.jar  
> -rwxr-xr-x 1 intdev6 staff 4234305 3 Mar 12:26 netcdf-4.2.20.jar  
> -rwxr-xr-x 1 intdev6 staff 166976 3 Mar 12:26  
> ognl-2.6.9-patch-20090427.jar  
> -rwxr-xr-x 1 intdev6 staff 4071607 3 Mar 12:26 pdfbox-1.8.7.jar  
> -rwxr-xr-x 1 intdev6 staff 2054958 3 Mar 12:26 poi-3.11-beta2.jar  
> -rwxr-xr-x 1 intdev6 staff 1111398 3 Mar 12:26 poi-ooxml-3.11-beta2.jar  
> -rwxr-xr-x 1 intdev6 staff 5161257 3 Mar 12:26  
> poi-ooxml-schemas-3.11-beta2.jar  
> -rwxr-xr-x 1 intdev6 staff 1288743 3 Mar 12:26  
> poi-scratchpad-3.11-beta2.jar  
> -rwxr-xr-x 1 intdev6 staff 219683 3 Mar 12:26 rome-1.0.jar  
> -rwxr-xr-x 1 intdev6 staff 392952 3 Mar 12:26 s2-extension-2.4.46.jar  
> -rwxr-xr-x 1 intdev6 staff 675602 3 Mar 12:26 s2-framework-2.4.46.jar  
> -rwxr-xr-x 1 intdev6 staff 277832 3 Mar 12:26 s2-robot-0.8.0.jar  
> -rwxr-xr-x 1 intdev6 staff 615450 3 Mar 12:26 s2-tiger-2.4.46.jar  
> -rwxr-xr-x 1 intdev6 staff 278281 3 Mar 12:26 serializer-2.7.1.jar  
> -rwxr-xr-x 1 intdev6 staff 29257 3 Mar 12:26 slf4j-api-1.7.7.jar  
> -rwxr-xr-x 1 intdev6 staff 8870 3 Mar 12:26 slf4j-log4j12-1.7.7.jar  
> -rwxr-xr-x 1 intdev6 staff 26514 3 Mar 12:26 stax-api-1.0.1.jar  
> -rwxr-xr-x 1 intdev6 staff 90722 3 Mar 12:26 tagsoup-1.2.1.jar  
> -rwxr-xr-x 1 intdev6 staff 507965 3 Mar 12:26 tika-core-1.6.jar  
> -rwxr-xr-x 1 intdev6 staff 557502 3 Mar 12:26 tika-parsers-1.6.jar  
> -rwxr-xr-x 1 intdev6 staff 210217 3 Mar 12:26 unidataCommon-4.2.20.jar  
> -rwxr-xr-x 1 intdev6 staff 76323 3 Mar 12:26 vorbis-java-core-0.6.jar  
> -rwxr-xr-x 1 intdev6 staff 22962 3 Mar 12:26 vorbis-java-tika-0.6.jar  
> -rwxr-xr-x 1 intdev6 staff 3176148 3 Mar 12:26 xalan-2.7.1.jar  
> -rwxr-xr-x 1 intdev6 staff 1363159 3 Mar 12:26 xercesImpl-2.10.0.jar  
> -rwxr-xr-x 1 intdev6 staff 220536 3 Mar 12:26 xml-apis-1.4.01.jar  
> -rwxr-xr-x 1 intdev6 staff 2730866 3 Mar 12:26 xmlbeans-2.6.0.jar  
> -rwxr-xr-x 1 intdev6 staff 117333 3 Mar 12:26 xmpcore-5.1.2.jar  
> -rwxr-xr-x 1 intdev6 staff 99555 3 Mar 12:26 xz-1.5.jar
> 
> also java version is :  
> java version "1.8.0\_31"
> 
> Java(TM) SE Runtime Environment (build 1.8.0\_31-b13)  
> Java HotSpot(TM) 64-Bit Server VM (build 25.31-b07, mixed mode)
> 
> thanks to help me to find the solution for solving this problem.
> 
> Best Regard,  
> Ali
> 
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---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 12:28am UTC](https://discuss.elastic.co/t/elasticsearch-river-web-plugin-problem/22500/4 "2017-07-06T00:28:36Z")

</div>