I\'m getting the above mention error when my client update their device to iOS 7.1, and then try to update our app from the AppCenter.
After some searching, i found a po
I would add some details. (Just work out this question)
We use self developed app center for our customers, to distribute demo/report apps.
You need SSL certificate. (see the post above) You can buy any kind of public certificate . In some cases you can use self signed certificate previously installed on iOS device by Apple Configurator.
It seems that you don’t have to use https everywhere. Secure URL (https) must have a link to .plist only. The app center web site url and package .ipa url can still be under http.
… and shame on Apple that invents new ways to make developer life hard.