Assertion failed: (match.isViable()), function findBestWitness, file TypeCheckProtocol.cpp, line 1502. #63409
Labels
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
conformances
Feature → protocol: protocol conformances
crash
Bug: A crash, i.e., an abnormal termination of software
derived conformances
Feature → protocol → conformances: derived conformances aka synthesized conformances
Foundation
swift 5.8
type checker
Area → compiler: Semantic analysis
While building an iOS app with Destination Mac Catalyst (M1), using Xcode 14.2 and the
swift-5.8-DEVELOPMENT-SNAPSHOT-2023-02-01-a.xctoolchain
toolchain, I got this error (had to elide a bit to make this fit):The text was updated successfully, but these errors were encountered: