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 := null)

Construct with specified error message and optional root cause.

 Haxall 4.0.6 ∙ 21-Jul-2026 09:48 EDT