Hi

I have been getting the same error with the 2011.1 version when adding client scripts. However today in noticed the following:

1. When you add a new Client Event a new Client Script is added like this:

<

script type="text/javascript" id="igClientScript">

For each event you add a new sript is added and normally this is appended with a number so next one wold be:

<script type="text/javascript" id="igClientScript1">

2. I was getting this error on a page, I had decided to rename the Client Scripts to indicate the EventHandlers stored in them (i.e. igDropDown for webDropDowns etc) and I noticed that after this I was able to add new ClientSideEvents to the the page without the error showing.

3. I then tried adding several events for a webImageButton and this worked OK. As I had other WebImage buttons  on the page I then tried adding events for another button and when I did this the Catastrophic Failure error re-appeared and did so for all other controls on the page.

From this I suspect that when you try to add a ClientSideEvent for another instance of a control that you have already added a ClientSideEvent that the default Client Script is requested

<script type="text/javascript" id="igClientScript">

But as this is already on the page then this error results, so this may be worth further investigation, so I will submit a support case with the info.

If you are getting error when adding ClientSideEvents, then as a workaround it might be worth trying to change the id of the client scripts on the page and see if this resolves the issue.

I am getting the same error.  Has this been resolved?