Error After removing plugin

[sesmic]

I am new to ES and was trying out the plugin, post removing the plugin using the ./plugin -remove command I am getting the following error,

[2014-08-02 16:18:07,726][WARN ][river ] [Nick Fury] failed to create river [solr][solr_river]
org.elasticsearch.common.settings.NoClassSettingsException: Failed to load class with value [solr]
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$1.run(TransportAction.java:93)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: solr
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at org.elasticsearch.river.RiverModule.loadTypeModule(RiverModule.java:73)
... 9 more