report.scheduling.error.upload.to.ftp.server Exceptions: 2: No such file at com.jcraft.jsch.ChannelSftp.throwStatusError

hi all,

I am scheduling over 150 reports in jasper server and report gets upload on FTP server. when report's get upload on FTP i am getting following Error Message

Error Message: report.scheduling.error.upload.to.ftp.server Exceptions: 2: No such file at com.jcraft.jsch.ChannelSftp.throwStatusError(ChannelSftp.java:2846) at com.jcraft.jsch.ChannelSftp._realpath(ChannelSftp.java:2340) at com.jcraft.jsch.ChannelSftp.cd(ChannelSftp.java:342) at com.jaspersoft.jasperserver.api.engine.common.util.impl.FTPUtil$SFTPServiceClientImpl.changeDirectory(FTPUtil.java:191) at com.jaspersoft.jasperserver.api.engine.scheduling.quartz.ReportExecutionJobFileSavingImpl.saveToFTPServer(ReportExecutionJobFileSavingImpl.java:237) at com.jaspersoft.jasperserver.api.engine.scheduling.quartz.ReportExecutionJobFileSavingImpl.save(ReportExecutionJobFileSavingImpl.java:95) at com.jaspersoft.jasperserver.api.engine.scheduling.quartz.ReportExecutionJob.executeAndSendReport(ReportExecutionJob.java:559) at com.jaspersoft.jasperserver.api.engine.scheduling.quartz.ReportExecutionJob.execute(ReportExecutionJob.java:243) at org.quartz.core.JobRunShell.run(JobRunShell.java:213) at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:557)

IF any one has faced similar issue please help me.