I'm going crazy with all certificates, provisioning profiles etc... !!!
So... for my app i need some beta tester. I created correctly all the provisioning profiles (development and distribution): in the distribution profile i added my device and one other. It worked fine, my beta tester can try the app.
Now i need to add other beta tester: i went to the provisioning portal -> Devices, and i added other six udid. I edited the distribution profile, adding the new udids. I re-downloaded the profile (erasing, before, the old one)... and now, if i run the app (selecting the distribution profile), xcode returns me an error
Code Sign error: Provisioning profile '666DA327-945B-4ED3-A08B-EDC0F28EB9E2' can't be found
Why? Thanks!