I am preparing an app for ad hoc distribution via Test Flight. I have stepped through (successfully) all of the preparatory steps in this Ray Wenderlich article already (https:
I have better solution for this problem. Don't go for export option tomato iPA, try out as mentioned below:
then from result open product folder --> Application folder --> and select ".app" file
Then simply add this .app file under apps of iTunes software on mac
After completing adding process right click on app icon in iTunes and show in finder which will give you iPA file.
It would take only 5 minutes max.