Type 'BigIntStorage' does not conform to protocol 'MutableCollection'

[nooo00ooob]

Xcode 14.2及13.3均编译失败
报错：
Type 'BigIntStorage' does not conform to protocol 'MutableCollection'
Unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'

[rakeyang]

看这里：// swift-tools-version:5.3

估计是你的swift版本太新了导致