2017-07-22 20:22:48.676 ERROR (qtp591137559-13) [   x:products] o.a.s.h.RequestHandlerBase org.apache.solr.common.SolrException: Error CREATEing SolrCore 'products': Unable to create core [products] Caused by: null
	at org.apache.solr.core.CoreContainer.create(CoreContainer.java:889)
	at org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:91)
	at org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:384)
	at org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:388)
	at org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:174)
	at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:173)
	at org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:748)
	at org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:729)
	at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:510)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:361)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:305)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1691)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:582)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
	at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
	at org.eclipse.jetty.server.Server.handle(Server.java:534)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:320)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
	at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
	at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.solr.common.SolrException: Unable to create core [products]
	at org.apache.solr.core.CoreContainer.create(CoreContainer.java:935)
	at org.apache.solr.core.CoreContainer.create(CoreContainer.java:855)
	... 37 more
Caused by: org.apache.solr.common.SolrException: Could not load conf for core products: null
	at org.apache.solr.core.ConfigSetService.getConfig(ConfigSetService.java:97)
	at org.apache.solr.core.CoreContainer.create(CoreContainer.java:916)
	... 38 more
Caused by: java.lang.NullPointerException
	at org.apache.solr.response.SchemaXmlWriter.writeResponse(SchemaXmlWriter.java:85)
	at org.apache.solr.schema.IndexSchema.persist(IndexSchema.java:406)
	at org.apache.solr.schema.ManagedIndexSchema.persistManagedSchema(ManagedIndexSchema.java:131)
	at org.apache.solr.schema.ManagedIndexSchemaFactory.upgradeToManagedSchema(ManagedIndexSchemaFactory.java:271)
	at org.apache.solr.schema.ManagedIndexSchemaFactory.create(ManagedIndexSchemaFactory.java:186)
	at org.apache.solr.schema.ManagedIndexSchemaFactory.create(ManagedIndexSchemaFactory.java:45)
	at org.apache.solr.schema.IndexSchemaFactory.buildIndexSchema(IndexSchemaFactory.java:75)
	at org.apache.solr.core.ConfigSetService.createIndexSchema(ConfigSetService.java:119)
	at org.apache.solr.core.ConfigSetService.getConfig(ConfigSetService.java:92)
	... 39 more