Unable to synch Yahoo cal to ICal

[blueb3ll]

Hello

I have recently updated to OS Lion.

Up to now the sync has worked fine but for some reason I can no longer sync my Yahoo Cal to ICal. Every time I try this following error message appears:

The request for account “Yahoo!” failed.

The server responded with
“502”
to operation CalDAVAccountRefreshQueueableOperation.

Could somebody please help me?
Thanks
Eva

 

[BrianBaughn]

Try this: Delete the account in iCal as you have it now, then create a new account as CalDav (not Yahoo!) using these instructions.

 

[lindoboe]

Try this: Delete the account in iCal as you have it now, then create a new account as CalDav (not Yahoo!) using these instructions.

I TRIED THAT, BUT I GOT THE FOLLOWING ERROR MESSAGE:
The request (CalDAVRefreshDelegateListQueueableOperation) for account “Yahoo!” failed.
BTW, I am using Mountain Lion.