If you can email me your 6.8 .backup file, I can look at it.
There is probably some invalid data in the original file that 7.0 doesn't understand.
zip it up with a password and send the password seperately.
I've deleted "imported.Extendedlist" imported from my old webwasher 6.x. Once logged out and logged in I can save without any warning so I think that the problem is about the syntax of extendlist above.
P.S. Thank you Erik for your help, but I can't share my old backup because it has several information like username etc.
I fixed the problem, I had an wrong url with a wrong category named *.* I deleted it and now all is saved well.
I hope that this can be useful for other people :-).
I'm going to test if the webgateway 7.x works fine now
Glad you found it.
The listConverter tries to do as much validation of the data as it's converting as possible, but I've found that people put a lot of interesting things in their config that MWG 6 doesn't complain about, but is invalid nonetheless. Putting * in the extended list is a good example.
If a configuration has trouble importing and saving on version 7, I find it best to export/import small bits at a time.
Just checkmark a section, save it, import, save in MWG, repeat.
where i can get the converter tools?