After upgrading from Xcode 8.3.2 to Xcode 9.3 I can no longer load the App to my iPhone.
The App previously in Swift 3.1 campiles with Swift 4.1 and rzns ok on the Simulator.
Trying to upload to my iPhone, it builds ok but crashes at runtime with the following msgs in Tread1
0 __abort_with_payload
1 abort_with_payload_wrapper_internal
2 abort_with_payload
3 dyld::halt(char const*)
4 dyld::_main(macho_header const*,unsigned long, int,, char const**,char const**,char const**,unsigned long*)
5 _dyld_start
I am stuck, any help would be greatly appreciazed
Wermuth