'isCollapsedPlaceholder' is null or not an object

[rkganapathy]

Hi All,

Following error occur in my every web page. Am using IE8.

Please give any solution.

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; WOW64; Trident/4.0; SLCC1; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729; .NET4.0C; .NET4.0E)
Timestamp: Wed, 24 Jan 2018 05:36:49 UTC


Message: 'isCollapsedPlaceholder' is null or not an object
Line: 1476
Char: 46
Code: 0
URI: http:/extnet/extnet-all-js/ext.axd?v=30649

ext.axd?v=30649:1476 Uncaught TypeError: Cannot read property 'isCollapsedPlaceholder' of undefined
at A.indexInStore (http://localhost:2666/Testing/(S(k2ersqkninayioahrwyj4tb2))/extnet/extnet-all-js/ext.axd?v=30649:1476:56)
at A.processUIEvent (http://localhost:2666/Testing/(S(k2ersqkninayioahrwyj4tb2))/extjs/ext-all-js/ext.axd?v=30649:18:1059284)
at A.callParent (http://localhost:2666/Testing/(S(k2ersqkninayioahrwyj4tb2))/extjs/ext-all-js/ext.axd?v=30649:18:50639)
at A.processUIEvent (http://localhost:2666/Testing/(S(k2ersqkninayioahrwyj4tb2))/extnet/extnet-all-js/ext.axd?v=30649:1464:13)
at A.callParent (http://localhost:2666/Testing/(S(k2ersqkninayioahrwyj4tb2))/extjs/ext-all-js/ext.axd?v=30649:18:50639)
at A.processUIEvent (http://localhost:2666/Testing/(S(k2ersqkninayioahrwyj4tb2))/extjs/ext-all-js/ext.axd?v=30649:18:1305795)
at A.handleEvent (http://localhost:2666/Testing/(S(k2ersqkninayioahrwyj4tb2))/extjs/ext-all-js/ext.axd?v=30649:18:1058679)
at A.handleMouseOverOrOut (http://localhost:2666/Testing/(S(k2ersqkninayioahrwyj4tb2))/extnet/extnet-all-js/ext.axd?v=30649:1500:153)
at http://localhost:2666/Testing/(S(k2ersqkninayioahrwyj4tb2))/extjs/ext-all-js/ext.axd?v=30649:18:26457

[geoffrey.mcgill]

Hi. Can you provide a simplified sample demonstrating how to reproduce the JavaScript error?

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