Facing error when adding Queryparser to solrconfig.xml

[FarrukhRB]

Hi,

I'm using solr 5.1.0 and trying to fix the synonyms issue with your provided solution. I'm facing the issue with collection init after adding the Queryparser tag in solrconfig.xml. (Please see attached Image.).

Please help me to fix this issue.

Error occure when querying
HTTP ERROR 500

Problem accessing /solr/collection1/select. Reason:

{msg=SolrCore 'collection1' is not available due to init failure: Error loading class 'com.github.healthonnet.search.SynonymExpandingExtendedDismaxQParserPlugin',trace=org.apache.solr.common.SolrException: SolrCore 'collection1' is not available due to init failure: Error loading class 'com.github.healthonnet.search.SynonymExpandingExtendedDismaxQParserPlugin'
at org.apache.solr.core.CoreContainer.getCore(CoreContainer.java:763)
at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:307)
at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:220)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1419)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:455)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1075)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:384)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1009)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:255)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:368)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489)
at org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:53)
at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:942)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1004)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:640)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
at org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:72)
at org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:264)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
at java.lang.Thread.run(Unknown Source)

Caused by: org.apache.solr.common.SolrException: Error loading class 'com.github.healthonnet.search.SynonymExpandingExtendedDismaxQParserPlugin'
at org.apache.solr.core.SolrCore.(SolrCore.java:885)
at org.apache.solr.core.SolrCore.(SolrCore.java:652)
at org.apache.solr.core.CoreContainer.create(CoreContainer.java:518)
at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:283)
at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:277)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
... 1 more
Caused by: org.apache.solr.common.SolrException: Error loading class 'com.github.healthonnet.search.SynonymExpandingExtendedDismaxQParserPlugin'
at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:492)
at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:423)
at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:561)
at org.apache.solr.core.PluginBag.createPlugin(PluginBag.java:108)
at org.apache.solr.core.PluginBag.init(PluginBag.java:203)
at org.apache.solr.core.PluginBag.init(PluginBag.java:192)
at org.apache.solr.core.SolrCore.(SolrCore.java:799)
... 8 more
Caused by: java.lang.ClassNotFoundException: com.github.healthonnet.search.SynonymExpandingExtendedDismaxQParserPlugin
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.net.FactoryURLClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:476)
... 14 more
,code=500}