ERROR: Message 'seconds' not understood.
RECEIVER:
Instance of JackTransportClock {    (08A6EB20, gc=04, fmt=00, flg=00, set=00)
  instance variables [0]
}
ARGS:
CALL STACK:
	DoesNotUnderstandError:reportError   B6E41AF0
		arg this = <instance of DoesNotUnderstandError>
	Nil:handleError   B6EBA1C0
		arg this = nil
		arg error = <instance of DoesNotUnderstandError>
	Thread:handleError   B6EBFD80
		arg this = <instance of Thread>
		arg error = <instance of DoesNotUnderstandError>
	Object:throw   B6EC69B0
		arg this = <instance of DoesNotUnderstandError>
	Object:doesNotUnderstand   B6ED05B0
		arg this = <instance of JackTransportClock>
		arg selector = 'seconds'
		arg args = [*0]
	< closed FunctionDef >  (no arguments or variables)
	Interpreter:interpretPrintCmdLine   08C42EE0
		arg this = <instance of Interpreter>
		var res = nil
		var func = <instance of Function>
		var code = "j.schedAbs(j.seconds.ceil, {..."
		var doc = <instance of ScelDocument>
	Process:interpretPrintCmdLine   B6E30970
		arg this = <instance of Main>