Please guide me to tht below error
An error occurred while publishing to exchange null on host null: Configured publishAction is not valid.
Stacktrace:
com.mendix.core.CoreRuntimeException: com.mendix.systemwideinterfaces.MendixRuntimeException: java.lang.IllegalArgumentException: Configured publishAction is not valid.
at com.mendix.basis.component.InternalCore.execute(InternalCore.java:449)
Caused by:
com.mendix.systemwideinterfaces.MendixRuntimeException: java.lang.IllegalArgumentException: Configured publishAction is not valid.
at com.mendix.basis.actionmanagement.ActionManager.executeSync(ActionManager.java:178)
Caused by:
java.lang.IllegalArgumentException: Configured publishAction is not valid.
at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:37)
Caused by:
Configured publishAction is not valid.
at rabbitmqconnector.actions.PublishMessages.validateInput(PublishMessages.java:92)
at rabbitmqconnector.actions.PublishMessages.executeAction(PublishMessages.java:49)
at rabbitmqconnector.actions.PublishMessages.executeAction(PublishMessages.java:32)
at com.mendix.systemwideinterfaces.core.UserAction.execute(UserAction.java:50)
at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.doCall(CoreActionHandlerImpl.scala:73)
at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.call(CoreActionHandlerImpl.scala:53)
at com.mendix.core.actionmanagement.CoreAction.call(CoreAction.java:51)
at com.mendix.basis.actionmanagement.ActionManager$1.execute(ActionManager.java:170)
at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:33)
at com.mendix.basis.actionmanagement.ActionManager.executeSync(ActionManager.java:174)
at com.mendix.basis.component.InternalCore.execute(InternalCore.java:445)
at com.mendix.modules.microflowengine.actions.actioncall.JavaAction.execute(JavaAction.scala:52)
at com.mendix.modules.microflowengine.microflow.impl.MicroflowObject.execute(MicroflowObject.java:47)
at com.mendix.modules.microflowengine.microflow.impl.MicroflowImpl.executeAfterBreakingIfNecessary(MicroflowImpl.java:200)
at com.mendix.modules.microflowengine.microflow.impl.MicroflowImpl.executeAction(MicroflowImpl.java:157)
at com.mendix.systemwideinterfaces.core.UserAction.execute(UserAction.java:50)
at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.doCall(CoreActionHandlerImpl.scala:73)
at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.call(CoreActionHandlerImpl.scala:53)
at com.mendix.core.actionmanagement.CoreAction.call(CoreAction.java:51)
at com.mendix.basis.actionmanagement.ActionManager$1.execute(ActionManager.java:170)
at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:33)
at com.mendix.basis.actionmanagement.ActionManager.executeSync(ActionManager.java:174)
at com.mendix.basis.component.InternalCore.execute(InternalCore.java:445)
at com.mendix.webui.actions.client.ExecuteAction.execute(ExecuteAction.java:143)
at com.mendix.webui.requesthandling.ClientRequestHandler$$anonfun$handleRequest$1.apply$mcV$sp(ClientRequestHandler.scala:321)
at com.mendix.webui.requesthandling.ClientRequestHandler$$anonfun$handleRequest$1.apply(ClientRequestHandler.scala:307)
at com.mendix.webui.requesthandling.ClientRequestHandler$$anonfun$handleRequest$1.apply(ClientRequestHandler.scala:307)
at com.mendix.basis.actionmanagement.IMonitoredAction$$anon$1.execute(IMonitoredAction.scala:47)
at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:33)
at com.mendix.basis.actionmanagement.IMonitoredAction$class.monitor(IMonitoredAction.scala:49)
at com.mendix.webui.requesthandling.ClientRequestHandler$ClientMonitoredAction.monitor(ClientRequestHandler.scala:419)
at com.mendix.webui.requesthandling.ClientRequestHandler.handleRequest(ClientRequestHandler.scala:307)
at com.mendix.webui.requesthandling.ClientRequestHandler.handleActionWithSessionRequired(ClientRequestHandler.scala:238)
at com.mendix.webui.requesthandling.ClientRequestHandler.handleAction(ClientRequestHandler.scala:202)
at com.mendix.webui.requesthandling.ClientRequestHandler.liftedTree1$1(ClientRequestHandler.scala:99)
at com.mendix.webui.requesthandling.ClientRequestHandler.processRequest(ClientRequestHandler.scala:91)
at com.mendix.externalinterface.connector.RequestHandler.doProcessRequest(RequestHandler.java:40)
at com.mendix.external.connector.MxRuntimeConnector$1.execute(MxRuntimeConnector.java:70)
at com.mendix.external.connector.MxRuntimeConnector$1.execute(MxRuntimeConnector.java:67)
at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:33)
at com.mendix.external.connector.MxRuntimeConnector.processRequest(MxRuntimeConnector.java:73)
at com.mendix.basis.impl.MxRuntimeImpl.processRequest(MxRuntimeImpl.java:875)
at com.mendix.m2ee.appcontainer.server.handler.RuntimeHandler.handle(RuntimeHandler.java:41)
at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:52)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:368)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489)
at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:953)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1014)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:861)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240)
at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:628)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
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(Thread.java:745)