I’m about to experiment the development trunk for Xcode. Unfortunately, even a “Hello World!” failed to startup (but compiles okay).
The crash log indicates:
Dyld Error Message:
Symbol not found: _$sSo12NSFileHandleC10FoundationE9readToEndAC4DataVSgyKF
Referenced from: /System/Library/Frameworks/SwiftUI.framework/Versions/A/SwiftUI
Expected in: /Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2020-11-21-a.xctoolchain/usr/lib/swift/macosx/libswiftFoundation.dylib
in /System/Library/Frameworks/SwiftUI.framework/Versions/A/SwiftUI
What should I do next? 