Splines error

gistfile1.txt

ERROR: Message 'flow' not understood.
RECEIVER:
Instance of PageLayout {    (0xb18449d0, gc=20, fmt=00, flg=00, set=03)
  instance variables [5]
    window : instance of QWindow (0x9d4f910, size=7, set=3)
    view : instance of FlowView (0xb188f850, size=5, set=3)
    isClosed : false
    boundsWereExplicit : true
    autoRemoves : instance of Array (0xb17804d0, size=1, set=0)
}
ARGS:
Instance of Function {    (0x9c1ad70, gc=1C, fmt=00, flg=00, set=03)
  instance variables [2]
    def : instance of FunctionDef in Method ObjectGui:gui
    context : Frame (0x9f92cd0) of ObjectGui:gui
}
Instance of Point {    (0x9d637d0, gc=20, fmt=00, flg=00, set=03)
  instance variables [2]
    x : Integer 1000
    y : Integer 200
}
CALL STACK:
	DoesNotUnderstandError:reportError   0x9dc6410
		arg this = <instance of DoesNotUnderstandError>
	Nil:handleError   0x9cdc930
		arg this = nil
		arg error = <instance of DoesNotUnderstandError>
	Thread:handleError   0x9c92230
		arg this = <instance of Thread>
		arg error = <instance of DoesNotUnderstandError>
	Object:throw   0x9e5eed0
		arg this = <instance of DoesNotUnderstandError>
	Object:doesNotUnderstand   0x9c0a390
		arg this = <instance of PageLayout>
		arg selector = 'flow'
		arg args = [*2]
	ObjectGui:gui   0x9f92cd0
		arg this = <instance of SplineGui>
		arg parent = nil
		arg bounds = <instance of Point>
		arg args = [*0]
		var layout = <instance of PageLayout>
	Interpreter:interpretPrintCmdLine   0x9f92e10
		arg this = <instance of Interpreter>
		var res = nil
		var func = <instance of Function>
		var code = "(
b = BSpline([0@0,1@1,3.2@2..."
		var doc = <instance of ScelDocument>
	Process:interpretPrintCmdLine   0x9c49bd0
		arg this = <instance of Main>
For advice: [http://supercollider.sf.net/wiki/index.php/ERROR:_Message_'flow'_not_understood.]