const classafIoc::NotFoundErrsys::Obj sys::Err afIoc::NotFoundErrA generic helper Err thrown when a value is not found in an expected list of values.This purposely does not extend IocErr so it may be freely used by other frameworksavailableValuesSourceconst Str[] availableValuesmakeSourcenew make(Str msg, Obj?[] availableValues, Err? cause := null)toStrSourcevirtual override Str toStr()