Hi Srinivas, the Treeview Widget has pretty decent js error handling, if you right click on the error in Chrome, choose Inspect and in the Console look for any setup errors related to the widget. Post your errors if you need any further help.
Thanks for quick response!!
mxui.js?636507001198238060:7 No permission to read or write entity undefined, check security!
error @ mxui.js?636507001198238060:7
mxui.js?636507001198238060:7 Could not create widget TreeView.widget.TreeView TypeError: Cannot read property 'isA' of undefined
at Object.<anonymous> (widgets.js?636507001198238060:307)
at Object.forEach (mxui.js?636507001198238060:7)
at Object._setupTypes (widgets.js?636507001198238060:275)
at Object.postCreate (widgets.js?636507001198238060:152)
at Object.create (mxui.js?636507001198238060:7)
at Object.postscript (mxui.js?636507001198238060:7)
at new <anonymous> (mxui.js?636507001198238060:7)
at mxui.js?636507001198238060:7
at Object.forEach (mxui.js?636507001198238060:7)
at i (mxui.js?636507001198238060:7)