can not read property of undefined

Question

Uncaught TypeError: Cannot read property 'removeAll' of undefinedour.js:93 showGritterstart.aspx:211 (anonymous function)

 

 

where should be problem in javascript.

same files are working in another project in c# but not in vb.net .is there problem with vb.net

 

 

ScriptManager.RegisterClientScriptBlock(Page, Me.[GetType](), "CallJS", "showGritter('No Record to Save','Please Upload any csv or txt file','top-center');", True)