如果我将UIButton子类化，则将Swift 4.0与Xcode 10版本一起使用
我在编译时遇到致命错误
<unknown>:0: error: fatal error encountered while reading from module 'Target_name'; please file a bug report with your project and the crash log
*** DESERIALIZATION FAILURE (please include this section in any bug report) ***
could not find 'init(frame:)' in parent class
0 swift 0x000000010829f64a PrintStackTraceSignalHandler(void*) + 42
1 swift 0x000000010829edfe SignalHandler(int) + 302
2 libsystem_platform.dylib 0x00007fff5beb4b3d _sigtramp + 29
3 libsystem_platform.dylib 0x00000001156687c7 _sigtramp + 3111861415
4 libsystem_c.dylib 0x00007fff5bd731c9 abort + 127
5 swift 0x00000001057050fb. swift::ModuleFile::fatal(llvm::Error) + 1915
6 swift 0x000000010573c753 getSILDeclRef(swift::ModuleFile*, llvm::ArrayRef<unsigned long long>, unsigned int&) + 307
7 swift 0x000000010573ea94 swift::SILDeserializer::readVTable(llvm::PointerEmbeddedInt<unsigned int, 31>) + 740
8 swift 0x00000001057e584b swift::SerializedSILLoader::getAllForModule(swift::Identifier, swift::FileUnit*) + 331
9 swift 0x000000010452f9be performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) + 34558
10 swift 0x0000000104523dc5 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 7717
11 swift 0x00000001044c9a35 main + 1349
12 libdyld.dylib 0x00007fff5bccb085 start + 1
'While deserializing SIL vtable for 'UIButtonRounded' in module'Target_Name'
error: Abort trap: 6'
这是我的课程
class UIButtonRounded: UIButton {
}