Can you list the server configuration?
Also, to generate a form, you can use the Generate Form functionality. (Right click on operation in Data/Service view ->Select Generate Form)
I am running the newest version of XAMPP on a Windows XP machine. I will test this
"generate form"-tool when I'm back on my computer in a few hours.
Thanks in the meanwhile.
It's fairly typical for code to break in intermediary classes that you never explicitly call (in this case DataList). This could be a flex bug, but 99.9% of the time the problem is incorrect initialization/use of a class you did call. So rather than look at the end of a stack trace, it's more constructive to look at the beginning and follow the trace up (hopefully you'll see your own classes in there).
Here, it looks like your program is receiving a response from the server after the insert service call. Can you check the returned message and also the code handling the response? Thanks,