i was trying to install my iphone application from testflight. it installs perfectly on few devices but in some after installing about 80 percent it gives an error \"Unable to d
I ended up creating new Provisioning profiles, not sure if it was because of:
"The ad hoc distribution provisioning profile is corrupted and the device is having an issue with it."
Recently default Xcode project settings set ONLY_ACTIVE_ARCH (Build Active Architecture Only) to yes for Debug configuration.
So your build can not be installed on different hardware than the one you use for development.
Change this setting and installation should go fine.
I just saw this as a result of a network error / time-out on a flaky network. I could see the progress bar increasing after I got the bright idea of just retrying. Also saw HTTP Range requests on the download server with ever increasing offsets of a few megabytes (the entire app was about 44MB).
I was also having this problem, with an Ad-Hoc iPad application, when trying to install it on a iOS 6 device.
What fixed it for me was to click on the project in XCode, and change the "iOS Deployment Target" setting from 5.1 to 6.0.
And there was silly me thinking that iOS 5.1 apps would run on a iOS 6.0 device.
This can also happen if you disable cellular data for "App Store" (for example, while on vacation) and forget to turn it back on. The solution here is to simply re-enable it in Settings -> Cellular.
clear your cache and cookies in Safari, make sure your device is in provisioning profile and provisioning profile is installed on the device.
If everything mentioned above didn't help, try to create a new build with higher build number and try to distribute your app again