Printop doesn't start

I try to start printop, and this is what I get. This is with printop 1.12-6, on edgy.

Error in startup script: can't read "printcap_list": no such variable
    while executing
"foreach i $printcap_list {
    lappend tmpname_list [lindex $i 0]}"
    (procedure "insert_buttons" line 12)
    invoked from within
"insert_buttons $path $type $this_printer_menu $pattern"
    ("button" arm line 8)
    invoked from within
"switch -exact -- [lindex $line 1] {
            button {
              set pattern [lindex $line 2]
              set path [lindex $line 3]
              if {($path!="")} {
                set..."
    ("printer" arm line 2)
    invoked from within
"switch -exact -- [lindex $line 0] {
        printer {
          switch -exact -- [lindex $line 1] {
            button {
              set pattern [lindex $line 2]
              set pat..."
    invoked from within
"if [catch {open $configfile r} fileID] {
        return 0
} else {
# Zeilennummer auf 0 setzen (fuer Fehlerausgabe: wo ist der Fehler?)
set line_no 0
# solan..."
    (procedure "read_configs" line 10)
    invoked from within
"read_configs $type $this_printer_menu $appcfg"
    (procedure "build_printer_menu" line 18)
    invoked from within
"build_printer_menu choosequeue $main_printer_menu_button.m"
    (procedure "ShowWindow." line 175)
    invoked from within
"ShowWindow."
    (file "/usr/bin/printop" line 2310)