I tried to transfer swift 4 to swift 4.2 with XCode 10.0 release then got this msg:
*** DESERIALIZATION FAILURE (please include this section in any bug report) ***
could not find 'init(frame:)' in parent class
0 swift 0x00000001050f864a PrintStackTraceSignalHandler(void*) + 42
1 swift 0x00000001050f7dfe SignalHandler(int) + 302
2 libsystem_platform.dylib 0x00007fff77964b3d _sigtramp + 29
3 libsystem_platform.dylib 0x00007ffeee8fb4e0 _sigtramp + 1996057024
4 libsystem_c.dylib 0x00007fff778231c9 abort + 127
5 swift 0x000000010255e0fb swift::ModuleFile::fatal(llvm::Error) + 1915
6 swift 0x0000000102595753 getSILDeclRef(swift::ModuleFile*, llvm::ArrayRef<unsigned long long>, unsigned int&) + 307
7 swift 0x0000000102597a94 swift::SILDeserializer::readVTable(llvm::PointerEmbeddedInt<unsigned int, 31>) + 740
8 swift 0x000000010263e84b swift::SerializedSILLoader::getAllForModule(swift::Identifier, swift::FileUnit*) + 331
9 swift 0x00000001013889be performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) + 34558
10 swift 0x000000010137cdc5 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 7717
11 swift 0x0000000101322a35 main + 1349
12 libdyld.dylib 0x00007fff7777b085 start + 1
and this in the end:
1. While deserializing SIL vtable for 'MenuNavTitleView' in module 'projectName'
error: Abort trap: 6
I looked for some reasons such as .zero, then even I replaced all .zero in my code, it still have this problem.
Does someone know how to fix this fatal error?
I was facing the same problem in Xcode 10.2.1.
After days trying to solve it, I discovered that in my case this error was caused by a Swift class that inherits an Objective-C Third Party class (more specifically the FSCalendarCell class from https://github.com/WenchaoD/FSCalendar).
I rewrote the Swift class for Objective-C and it compiled and ran without any issues.