iPhone app could not be installed at this time

Question

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

Answer 1

Here is what worked for me:

1. Clear the Cache and Cookies (Settings > Safari).
2. Remove existing profile (if any) linked to "Test Flight App" (Settings > General > Profiles).
3. Open Safari and go to https://testflightapp.com/. Login and follow the steps to start over.

P.S. I used to have a Test Flight App, but it looks like it crashed and the icon turned to be all white. Restarting my iPhone made it reappear correctly.