After 6.3 upgrade classic ui dialog is throwing error

[srinuetta]

Hi,

Recently we have upgraded to AEM 6.3 from AEM 6.1.

After upgrade dialog is throwing below error in classic ui.

Uncaught TypeError: Cannot read property 'toString' of undefined

    at constructor.setOptions (widgets.js:112930)

    at new constructor (widgets.js:113468)

    at Object.create (widgets.js:25802)

    at sb.createComponent (widgets.js:30428)

    at sb.lookupComponent (widgets.js:30416)

    at sb.add (widgets.js:30222)

    at sb.<anonymous> (widgets.js:30218)

    at Object.each (widgets.js:1780)

    at sb.add (widgets.js:30217)

    at sb.initComponent (widgets.js:30108)

Thanks

Srini

[Hemant_arora]

Can you elaborate the issue or upload the sample component package to reproduce the issue ?

I need to understand which widget is throwing this error to find a fix