invalid command name on some downloads

We have a clean install of 10.5 and update to 10.5.1. macport version [mac27:~/sun/info] bmcinnes% port --version MacPorts 1.520 Some installs work, others don't [mac27:~/sun/info] bmcinnes% sudo port uninstall gimp Error: port uninstall failed: Registry error: gimp not registered as installed. [mac27:~/sun/info] bmcinnes% sudo port install gimp2 Error: Unable to execute port: invalid command name "destroot.violate_mtree" [mac27:~/sun/info] bmcinnes% sudo port install gnuplot Password: Error: Unable to execute port: invalid command name "destroot.violate_mtree" [mac27:~/sun/info] bmcinnes% I have reinstalled Xcode 3.0, done port sync, looked through archives, but there seems to be no total solution ?