can't add RadAjaxManager in the design view

[Rasheed]

hi 
i have a RadGrid and i want to add a RadAjaxManager using the smart tag but i get an error
 error invoking 'Add RadAjaxManager'

any help please !!

[Princy]

Hello,

Take a look into the following forum thread which discuss the same.
Error with Q1-2012

Thanks,
Princy.

[Rasheed]

thanks for reply
but in the related article there is no solution for this problem, should i use the old release for now or what ? 


thanks