class

UnknownKeyErr

const class UnknownKeyErr : Err

UnknownKeyErr indicates an attempt to lookup a non-existent key.

 constructors make

Construct with specified error message and optional root cause

 make new make(Str msg, Err? cause)

Construct with specified error message and optional root cause.

 Haxall 4.0.5 ∙ 24-Feb-2026 14:33 EST