Foswiki 2.0.1 crashes on TreePlugin activation

Hi everyone,

my Foswiki installation of 2.0.1 crashes on activation of TreePlugin 1.9.1

The error message is as follows:

Foswiki detected an internal error - please check your Foswiki logs and webserver logs for more information.
utf8 "\xA9" does not map to Unicode

Here's the log entry:

| 2015-08-24T13:46:08+02:00 warning | utf8 "\xA9" does not map to Unicode at /usr/lib/perl5/5.10.0/x86_64-linu
x-thread-multi/Encode.pm line 200.
 at /usr/lib/perl5/5.10.0/x86_64-linux-thread-multi/Encode.pm line 200
        Encode::decode('utf-8', '%META:TOPICPARENT{name="Plugins"}%\x{a}---+!! Tree Plugin\x{a}<!--\x{a}  ...'
, 1) called at /data/srv/www/htdocs/wikitest.augsburg.de/Foswiki-2.0.1/lib/Foswiki/Store.pm line 259
        Foswiki::Store::decode('%META:TOPICPARENT{name="Plugins"}%\x{a}---+!! Tree Plugin\x{a}<!--\x{a}  ...')
 called at /data/srv/www/htdocs/wikitest.augsburg.de/Foswiki-2.0.1/lib/Foswiki/Store/Rcs/Store.pm line 116
        Foswiki::Store::Rcs::Store::readTopic('Foswiki::Store::RcsWrap=HASH(0x16b8c70)', 'Foswiki::Meta=HASH(0
x2951da0)', undef) called at /data/srv/www/htdocs/wikitest.augsburg.de/Foswiki-2.0.1/lib/Foswiki/Meta.pm line
1156
        Foswiki::Meta::loadVersion('Foswiki::Meta=HASH(0x2951da0)') called at /data/srv/www/htdocs/wikitest.au
gsburg.de/Foswiki-2.0.1/lib/Foswiki/Meta.pm line 1196
        Foswiki::Meta::text('Foswiki::Meta=HASH(0x2951da0)') called at /data/srv/www/htdocs/wikitest.augsburg.
de/Foswiki-2.0.1/lib/Foswiki/Prefs/Parser.pm line 46
        Foswiki::Prefs::Parser::parse('Foswiki::Meta=HASH(0x2951da0)', 'Foswiki::Prefs::TopicRAM=HASH(0x10e029
0)') called at /data/srv/www/htdocs/wikitest.augsburg.de/Foswiki-2.0.1/lib/Foswiki/Prefs/TopicRAM.pm line 38
        Foswiki::Prefs::TopicRAM::new('Foswiki::Prefs::TopicRAM', 'Foswiki::Meta=HASH(0x2951da0)') called at /
data/srv/www/htdocs/wikitest.augsburg.de/Foswiki-2.0.1/lib/Foswiki/Prefs.pm line 148
        Foswiki::Prefs::_getBackend('Foswiki::Prefs=HASH(0x17774a8)', 'System', 'TreePlugin') called at /data/
srv/www/htdocs/wikitest.augsburg.de/Foswiki-2.0.1/lib/Foswiki/Prefs.pm line 334
        Foswiki::Prefs::setPluginPreferences('Foswiki::Prefs=HASH(0x17774a8)', 'System', 'TreePlugin') called
at /data/srv/www/htdocs/wikitest.augsburg.de/Foswiki-2.0.1/lib/Foswiki/Plugin.pm line 232
        Foswiki::Plugin::registerSettings('Foswiki::Plugin=HASH(0x1ba4148)', 'Foswiki::Plugins=HASH(0x16b8b38)
') called at /data/srv/www/htdocs/wikitest.augsburg.de/Foswiki-2.0.1/lib/Foswiki/Plugins.pm line 273
        Foswiki::Plugins::settings('Foswiki::Plugins=HASH(0x16b8b38)') called at /data/srv/www/htdocs/wikitest
.augsburg.de/Foswiki-2.0.1/lib/Foswiki.pm line 2243
        Foswiki::new('Foswiki', undef, 'Foswiki::Request=HASH(0x1694040)', 'HASH(0x166bbc8)') called at /data/
srv/www/htdocs/wikitest.augsburg.de/Foswiki-2.0.1/lib/Foswiki/UI.pm line 363
        Foswiki::UI::__ANON__() called at /usr/lib/perl5/vendor_perl/5.10.0/Error.pm line 415
        eval {...} called at /usr/lib/perl5/vendor_perl/5.10.0/Error.pm line 407
        Error::subs::try('CODE(0x14f1e88)', 'HASH(0x16b82f8)') called at /data/srv/www/htdocs/wikitest.augsbur
g.de/Foswiki-2.0.1/lib/Foswiki/UI.pm line 500
        Foswiki::UI::_execute('Foswiki::Request=HASH(0x1694040)', 'CODE(0x1572100)') called at /data/srv/www/h
tdocs/wikitest.augsburg.de/Foswiki-2.0.1/lib/Foswiki/UI.pm line 326
        Foswiki::UI::handleRequest('Foswiki::Request=HASH(0x1694040)') called at /data/srv/www/htdocs/wikitest
.augsburg.de/Foswiki-2.0.1/lib/Foswiki/Engine/CGI.pm line 99
        Foswiki::Engine::CGI::run('Foswiki::Engine::CGI=HASH(0xf62408)') called at /data/srv/www/htdocs/wikite
st.augsburg.de/Foswiki/bin/configure line 29.

Version of Encode is 2.76

Any clue about what's going on?

-- AndreasHafner - 24 Aug 2015

This needs a task. With the change of Foswik internals to Unicode, any extensions that interface with the outside world will need modifications for Foswiki 2.0. With 300+ extensions we had to handle these on an as-reported basis.

See Item13483. I'll add this to the list.

-- GeorgeClark - 24 Aug 2015

Simple fix. The TreePlugin topic contains a high character which is causing the error. Otherwise it seems to work fine. It's the copyright symbol. You can get around the issue by manually editing data/System/TreePlugin.txt and removing the copyright symbol, or change it to the (c) text, or html entity ©

 | Authors: | TWiki:Main.SlavaKozlov (alpha release), [[Foswiki:Main.StephaneLenclud][Stephane Lenclud]] (2006-2008)  |
-| Copyright <A9>: | Copyright (C) 2002 Slava Kozlov. All Rights Reserved. |
+| Copyright (C): | Copyright (C) 2002 Slava Kozlov. All Rights Reserved. |
 | License: | [[http://www.gnu.org/copyleft/gpl.html][GPL]] |

-- GeorgeClark - 24 Aug 2015

Works! Thanks a lot...