over the air ad hoc distribution "Unable to download"
I am trying to distribute an iphone app ad hoc internally for a beta test to 3 users, myself (iphone 4) and two others (iPad 2, iphone 3G). My device served as the development device as well. I followed all of the Apple documentation, archived the app and prepared it for enterprise deployment. I put it on my web server with the .plist manifest file. To test it out, I installed it on my own device (which again, is the development device), and it worked swell. So then I sent the link to my other 2 users, who then reported that they received a message that said they are "unable to download." So first I thought that it might be a problem with the UDID, which it is not. I had my user's download a UDID sender-app, and they matched up perfectly. That was after I asked this question: What is the MIME type for .mobileprovision in which I wanted to know the MIME type for a .mobileprovision file. I took this info, and then also sent out a link to the provisioning profile. Both of my test users could download and install the .mobileprovision file fine; the problem was when they again, tried to install the app. One user got a message that said "cannot connect to server www.myserver.com" while the other one installed 80% of the app, before getting the "unable to download" message with 2 options: "retry" and "done."
I am at a loss. Does anybody have any ideas? I am desperate! Thanks in advance!
Answer
For the ones who don't use testflight, check the Deployment Target under the Summary page. Maybe you set it too high, which is not always necessary.
Once I created a new App which Xcode automatically set the latest target for me, which was 5.1.1, but the user was using 5.0.x. I changed it back to 4.0 with very small code change(weak->assign), and then it worked.