Unable to get property 'PageRequestManager' of undefined or null reference while using Script Manger in ASP.NET

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I am getting below error while I am using Script Manger control in Asp.net 4.5 Project.
Unable to get property 'PageRequestManager' of undefined or null reference.

If I am using Ajax Tool Script Manger control I am not getting that error.

Why is that happening only in case of Script Manager control alone?

and what is the solution?

Posted 29-Jan-15 21:50pm

reddybharath

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Answer 1 · 2015-01-29T23:50:00

Solution 1

Refer the thread - IE10 - Unable to get property 'PageRequestManager' of undefined or null reference[^]

Also - Unable to get property ‘PageRequestManager’ of undefined or null reference[^]

I think you need to apply some fix.

Posted 29-Jan-15 23:50pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)