Hi nino,
I do not think this is a problem on the J-Link side, since this error occurs even before Sourcery G++ is trying to connecting to J-Link.
I had the same problem first, but after playing with the options in the "Debugger" dialog this problem was suddenly gone and not reproducible anymore.
J-Link in Sourcery G++ is working fine now.
It seems it depends on which order the settings in the dialog are configured...strange.
- Kevin -