Need Help in moving project from one repository to other repository SVNCopyClient

Hi,  I have to move project from one repository to other repository.I used SVNKit copyclient doCopy method.But its giving exception  .Can some plese help me this.Is it possible to move project from one repository to another? Caused by: org.tmatesoft.svn.core.SVNException: svn: E160006: No such revision 4527 svn: E175002: PROPFIND of '/svn/SVCS-ARCHIVE/!svn/vcc/default': 500 Internal Server Error   at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:64)  at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:51)  at org.tmatesoft.svn.core.internal.io.dav.DAVUtil.getResourceProperties(DAVUtil.java:81)  at org.tmatesoft.svn.core.internal.io.dav.DAVUtil.getBaselineProperties(DAVUtil.java:249)  at org.tmatesoft.svn.core.internal.io.dav.DAVUtil.getBaselineInfo(DAVUtil.java:184)  at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.checkPath(DAVRepository.java:223)  at org.tmatesoft.svn.core.internal.wc.SVNCopyDriver.copyReposToRepos(SVNCopyDriver.java:267)  at org.tmatesoft.svn.core.internal.wc.SVNCopyDriver.setupCopy(SVNCopyDriver.java:627)  at org.tmatesoft.svn.core.internal.wc16.SVNCopyClient16.doCopy(SVNCopyClient16.java:437)  at org.tmatesoft.svn.core.internal.wc2.remote.SvnNgReposToReposCopy.run(SvnNgReposToReposCopy.java:65)  at org.tmatesoft.svn.core.internal.wc2.remote.SvnNgReposToReposCopy.run(SvnNgReposToReposCopy.java:23)  at org.tmatesoft.svn.core.internal.wc2.SvnOperationRunner.run(SvnOperationRunner.java:20)  at org.tmatesoft.svn.core.wc2.SvnOperationFactory.run(SvnOperationFactory.java:1224)  at org.tmatesoft.svn.core.wc2.SvnOperation.run(SvnOperation.java:291)  at org.tmatesoft.svn.core.wc2.SvnRemoteCopy.run(SvnRemoteCopy.java:227)  at org.tmatesoft.svn.core.wc.SVNCopyClient.doCopy(SVNCopyClient.java:480)