i created on cross platform application (IOS,Android).
now i want to host my new ios build on testflight for beta testing.
already my senior developer release first version on testflight but now he recently leave company and now i need to host new ios build with new version on testflight using visual studio 2017 windows machine.
i tried to add apple developer account in visual studio but it show me error that "Server with specific hostname could not found".
can you please help me to get out of this and step wise instruction so i can host my latest build on test flight.
i tried many solution but unable to do it.