plugins eror

why i cand add pligins test an tolbar? plugins im put in folder editor\plugins\
My confic file:
FCKConfig.ToolbarSets['PluginTest'] = [

['SourceSimple'],

['My_Find','My_Replace','-','Placeholder'],

['StyleSimple','FontFormatSimple','FontNameSimple','FontSizeSimple'],

['Table','-','TableInsertRowAfter','TableDeleteRows','TableInsertColumnAfter','TableDeleteColumns','TableInsertCellAfter','TableDeleteCells','TableMergeCells','TableHorizontalSplitCell','TableCellProp'],

['Bold','Italic','-','OrderedList','UnorderedList','-','Link','Unlink'],

'/',

['My_BigStyle','-','Smiley','-','About','-','Test']

] ;



// Change the default plugin path.

FCKConfig.PluginsPath = FCKConfig.BasePath.substr(0, FCKConfig.BasePath.length - 7) + '_samples/_plugins/' ;


FCKConfig.Plugins.Add( 'findreplace', 'en,fr,it' ) ;

FCKConfig.Plugins.Add( 'samples' ) ;


var sOtherPluginPath = FCKConfig.BasePath.substr(0, FCKConfig.BasePath.length - 7) + 'editor/plugins/' ;

FCKConfig.Plugins.Add( 'placeholder', 'de,en,es,fr,it,pl', sOtherPluginPath ) ;

FCKConfig.Plugins.Add( 'tablecommands', null, sOtherPluginPath ) ;

FCKConfig.Plugins.Add( 'simplecommands', null, sOtherPluginPath ) ;
FCKConfig.Plugins.Add( 'Test', null, sOtherPluginPath ) ;