I have installed it follow instructions: install ajaxedit first, then install likeit.
Finally I got warnings below on the top of every pages, I googled and found it may be one PHP compatible issue.
Warning: Declaration of action_plugin_likeit::register(&$controller) should be compatible with DokuWiki_Action_Plugin::register(Doku_Event_Handler $controller) in /var/www/html/dokuwiki/lib/plugins/likeit/action.php on line 0
Warning: Declaration of syntax_plugin_likeit::handle($match, $state, $pos, &$handler) should be compatible with DokuWiki_Syntax_Plugin::handle($match, $state, $pos, Doku_Handler $handler) in /var/www/html/dokuwiki/lib/plugins/likeit/syntax.php on line 0
Warning: Declaration of syntax_plugin_likeit::render($mode, &$renderer, $opts) should be compatible with DokuWiki_Syntax_Plugin::render($format, Doku_Renderer $renderer, $data) in /var/www/html/dokuwiki/lib/plugins/likeit/syntax.php on line 0
Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/dokuwiki/lib/plugins/likeit/action.php:0) in /var/www/html/dokuwiki/lib/plugins/ckgedit/action/meta.php on line 419
Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/dokuwiki/lib/plugins/likeit/action.php:0) in /var/www/html/dokuwiki/lib/plugins/ckgedit/action/meta.php on line 605
Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/dokuwiki/lib/plugins/likeit/action.php:0) in /var/www/html/dokuwiki/lib/plugins/ckgedit/action/meta.php on line 607
Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/dokuwiki/lib/plugins/likeit/action.php:0) in /var/www/html/dokuwiki/lib/plugins/ckgedit/action/meta.php on line 608
Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/dokuwiki/lib/plugins/likeit/action.php:0) in /var/www/html/dokuwiki/lib/plugins/ckgedit/action/meta.php on line 697
Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/dokuwiki/lib/plugins/likeit/action.php:0) in /var/www/html/dokuwiki/inc/actions.php on line 210
Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/dokuwiki/lib/plugins/likeit/action.php:0) in /var/www/html/dokuwiki/lib/tpl/dokuwiki/main.php on line 12
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