install conflict?

[soneel@…]

upon installing macports, i get the following error, which im having a hard time resolving:

invalid command name "mport_filtervariants"
    while executing
"mport_filtervariants [array get requested_variations] yes"
    ("uplevel" body line 33)
    invoked from within
"uplevel 1 $block"
    (procedure "foreachport" line 18)
    invoked from within
"foreachport $portlist {
        set target $action

        # If we have a url, use that, since it's most specific
        # otherwise try to map the ..."
    (procedure "action_target" line 7)
    invoked from within
"$action_proc $action $portlist [array get global_options]"
    (procedure "process_cmd" line 92)
    invoked from within
"process_cmd $remaining_args"
    invoked from within
"if { [llength $remaining_args] > 0 } {

    # If there are remaining arguments, process those as a command
    set exit_status [process_cmd $remaining..."
    (file "/opt/passcal/other/bin/port" line 3695)

Is this because I have other software installed in /opt/local, where macports wants to live? If so, should I uninstall, then re-install in a new location - or will i run into problems if macports is not in /opt/local?

[ryandesign (Ryan Carsten Schmidt)]

Please clarify: you get this problem after installing MacPorts (if so how did you install MacPorts?), or after installing a port (if so what port?) It looks like you compiled MacPorts from source, using --prefix=/opt/passcal/other? If so, do you have other software in /opt/local? If so, what is it?