I've seen one or two recent posts on this error, but no resolution.
I am using 2009 Q1 controls. Here is how I generate this error on my system here at work. I create a new Ajax-enabled web application. I make sure that the folder holding the site is designated as an application. I drag RadAjaxManager into the default page. I compile and bring up the page (on localhost) -- the javascript error "sys.webforms.pagerequestmanager is null or not an object" appears. (In more complex solutions, I have seen that this error prevents functioning of components like RadEditor.) It is entirely related to RadAjaxManager.
Now, I should mention that my computer at home, running the same application, does not have this error. So there is clearly something relating to my installation causing this, but it seems to be bothering other people as well. I have not been able to identify what the issue could be, it isn't anything obvious. What it means is that I do not have a way to develop Ajax-enabled sites using Telerik controls while at work. Which is not good.
I am using 2009 Q1 controls. Here is how I generate this error on my system here at work. I create a new Ajax-enabled web application. I make sure that the folder holding the site is designated as an application. I drag RadAjaxManager into the default page. I compile and bring up the page (on localhost) -- the javascript error "sys.webforms.pagerequestmanager is null or not an object" appears. (In more complex solutions, I have seen that this error prevents functioning of components like RadEditor.) It is entirely related to RadAjaxManager.
Now, I should mention that my computer at home, running the same application, does not have this error. So there is clearly something relating to my installation causing this, but it seems to be bothering other people as well. I have not been able to identify what the issue could be, it isn't anything obvious. What it means is that I do not have a way to develop Ajax-enabled sites using Telerik controls while at work. Which is not good.