iOS Enterprise OTA distribution Unable to Download Application

Question

I created an iOS app and want to distribute it Over-The-Air. I followed this guide:

http://help.apple.com/iosdeployment-apps/mac/1.1/?lang=en-us#app43ad77ea

Answer 1

Answering my own question:

The problem was that one of the thumbnails did not have the correct path set in the manifest.plist - so not only the ipa needs the correct path, but also the temporary download icons, otherwise the installation will fail with the mentioned error message.

Answer 2

Another Issue that it could be is that both the .plist AND the .ipa need to be hosted with HTTPS and not just regular HTTP. The software package string should look like below:

<key>kind</key>
<string>software-package</string>
<key>url</key>
<string>https://example.com/app.ipa</string>

Stupid little oversight but it was tripping me up for awhile.