I hope to test my app on iPod Touch
I created development provisioning profile.
I dragged downloaded .mobileprovision file to Organizer
There is a ye
If you know (for sure) that your key/pair and provisioning profiles are installed properly but you're STILL getting the infamous error, this simple solution worked for me (for good measure, clean your target first).
Go into build settings and locate the code signing area. If it's not already selected, choose the profile type in the "Automatic Profile Selector" section at the top. Try toggling between direct selecting and the automatic profile selector if it was already there.
Worked for me!