Error: can't read gchat

[sander]

can't read "gchat(<email address hidden>,mynick)": no such element in array
can't read "gchat(<email address hidden>,mynick)": no such element in array
    while executing
"return $gchat($room,mynick)"
    (procedure "::jlib::groupchat::mynick" line 5)
    invoked from within
"[namespace current]::groupchat::${cmd} $jlibname <email address hidden>"
    ("eval" body line 1)
    invoked from within
"eval {[namespace current]::groupchat::${cmd} $jlibname} $args"
    (procedure "groupchat" line 2)
    invoked from within
"$cmd $jlibname mynick <email address hidden>"
    ("eval" body line 1)
    invoked from within
"eval {$cmd $jlibname} $args"
    (procedure "jlib::cmdproc" line 8)
    invoked from within
"jlib::cmdproc ::jlib::jlib1 groupchat mynick <email address hidden>"
    ("eval" body line 1)
    invoked from within
"eval jlib::cmdproc {::jlib::jlib1} $cmd $args"
    (procedure "::jlib::jlib1" line 1)
    invoked from within
"$jlibname groupchat mynick $room"
    ("gc-1.0" arm line 2)
    invoked from within
"switch -- $serv(roomprot,$room) {
 gc-1.0 {
     set nick [$jlibname groupchat mynick $room]
 }
 muc {
     set nick [$jlibname muc mynick $room]
 } ..."
    (procedure "::jlib::service::mynick" line 12)
    invoked from within
"[namespace current]::service::${cmd} $jlibname <email address hidden>"
    ("eval" body line 1)
    invoked from within
"eval {[namespace current]::service::${cmd} $jlibname} $args"
    (procedure "service" line 2)
    invoked from within
"$cmd $jlibname mynick <email address hidden>"
    ("eval" body line 1)
    invoked from within
"eval {$cmd $jlibname} $args"
    (procedure "jlib::cmdproc" line 8)
    invoked from within
"jlib::cmdproc ::jlib::jlib1 service mynick <email address hidden>"
    ("eval" body line 1)
    invoked from within
"eval jlib::cmdproc {::jlib::jlib1} $cmd $args"
    (procedure "::jlib::jlib1" line 1)
    invoked from within
"$jstate(jlib) service mynick <email address hidden>"
    ("eval" body line 1)
    invoked from within
"eval {$jstate(jlib)} $args"
    (procedure "::Jabber::Jlib" line 4)
    invoked from within
"::Jabber::Jlib service mynick $roomjid"
    (procedure "Exit" line 14)
    invoked from within
"Exit $chattoken"
    (procedure "::GroupChat::CloseCmd" line 41)
    invoked from within
"::GroupChat::CloseCmd .jgc1"
    ("uplevel" body line 1)
    invoked from within
"uplevel #0 $topcache($w,-closecommand) $w"
    (procedure "::UI::DoCloseWindow" line 24)
    invoked from within
"::UI::DoCloseWindow .jgc1 wm"
    (command for "WM_DELETE_WINDOW" window manager protocol)

[Mats (matsben)]

First, this is less likely to happen with a conference service on your login server, but is anyway a bug.
Second, if trying to enter a room on a non local server that conferecne service is discoed to see what protocol to use:

SEND: <iq type='get' id='1021' to='conference.jabber.org'><query xmlns='http://jabber.org/protocol/disco#info'/></iq>
RECV: <iq from='conference.jabber.org' <email address hidden>/Coccinella@Mats-Bengtssons-dator' id='1021' type='result'><query xmlns='http://jabber.org/protocol/disco#info'><identity category='conference' type='text' name='Chatrooms'/><feature var='http://jabber.org/protocol/muc'/><feature var='jabber:iq:register'/><feature var='vcard-temp'/></query></iq>
jlib::registergcprotocol jid=conference.jabber.org, gcprot=muc

If for some reason this fails it seems that the old "gc-1.0" protocol is used but can't verify this since it works in my case. What happened here is that the disco failed and I had the wrong order of calls:

 $jstate(jlib) service exitroom $roomjid
 ::hooks::run groupchatExitRoomHook $roomjid

 set nick [::Jabber::Jlib service mynick $roomjid]

mynick is cleaned up on exit, as it should, but while muc is fault tolerant, gc-1.0 is not.