Hi Experts, I created a report in my local in jasper studio 5.5.0.final with a input parameter with datatype as string. I saved it in jasper server (deployed on glassfish 2.0). At server level I added input control of same name as the parameter I created in my local but by mistake with number data type. Now when I run or edit my report in Jasper Server it gives me error org.apache.jasper.JasperException: java.lang.NullPointerException. And when I try to delete this report it says cannot deserialize and does not let me delete the report. If I try to delete the entire folder it says the folder contains item(s) which cannot be deleted. From my jasper Studio in Repository Explorer I can’t expand this folder in which the corrupt report is there it says java.lang.Exception: The Server has returned an error with code 1 and with the message could not deserializeat com.jaspersoft.ireport.jasperserver.ws.WSClient.list(WSClient.java:188)at com.jaspersoft.ireport.jasperserver.ws.WSClient.list(WSClient.java:131)at com.jaspersoft.studio.server.protocol.soap.SoapConnection.list(SoapConnection.java:69)at com.jaspersoft.studio.server.protocol.ProxyConnection.list(ProxyConnection.java:57)at com.jaspersoft.studio.server.WSClientHelper.listFolder(WSClientHelper.java:115)at com.jaspersoft.studio.server.WSClientHelper.refreshResource(WSClientHelper.java:343)at com.jaspersoft.studio.server.action.resource.RefreshResourcesAction$1.run(RefreshResourcesAction.java:65)at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121) so in Jasper Studio in that folder I can’t see other correct reports as well as the folder does not open. Please help.