Hi Friends ,
I developed a application using SAPUI5 , it is working fine in all brtowser except Internet Explorer. but my client requirement is IE 9 only , it is working fine on IE 11, but they want to use it on IE 9. I can't go for other version. no more alternatives. when i try to open the applicattion on IE it shows the following error Message. Please help me to fix this . 
"undefined' is not valid for aggregation "items" of Element
sap.ui.commons.DropdownBoxTimeH line: 91
sap.ui.core.js Char 36871
i have pasted the error details here ,
Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/5.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)
Timestamp: Fri, 21 Feb 2014 06:18:45 UTC
Message: "undefined" is not valid for aggregation "items" of Element sap.ui.commons.DropdownBox#DropdownBoxTimeH
Line: 91
Char: 36871
Code: 0