Here is the $create statement:
WebForm_InitCallback();Sys.Application.add_init(function() { $create(Telerik.Web.UI.RadGantt, {"_skin":"Silk","_uniqueId":"rgPlanning","clientStateFieldID":"rgPlanning_ClientState","columnsData":[{"title":"Title","width":100,"field":"title"},{"title":"Start","width":100,"format":"{0:dd/MM/yy}","field":"start"},{"title":"End","width":100,"format":"{0:dd/MM/yy}","field":"end"},{"title":"Hours","width":100,"field":"time"}],"customTaskFields":[{"propertyName":"Time","clientPropertyName":"time","defaultValue":null,"type":2}],"dependenciesData":[{"ID":10,"PredecessorID":124,"SuccessorID":129,"Type":1},{"ID":10,"PredecessorID":124,"SuccessorID":129,"Type":1},{"ID":11,"PredecessorID":124,"SuccessorID":141,"Type":1},{"ID":11,"PredecessorID":124,"SuccessorID":141,"Type":1}],"viewsData":[{"selected":true,"type":"day"},{"type":"week"},{"monthHeaderTemplate":"#=kendo.toString(start, \u0027MMM, yyyy\u0027)#","type":"month"},{"type":"year"}]}, null, null, $get("rgPlanning"));});I'm not getting any javascript errors.