Take the 2-minute tour ×  My code  q1 = {{1, 0.5}, {2, 0.5}}; q2
= 10; q3 = {3, 3};       PlotRange -> {{0, Dynamic[q2]}, {-1,
1}},       Axes -> True],      Appearance -> q3],
TrackedSymbols :> {q3}]  is wrong, because when I press this
button  Button["Add", AppendTo[q1, {q1[[-1, 1]] + 1, 0.5}];
AppendTo[q3, 1]]  a bad output cell appears, and I get the
mesage  The specified setting for the option GraphicsBoxOptions,
PloRange cannot be used."  What is wrong here??  share|improve
this question I don't know but if you leave q2 without Dynamic
it will work, also wrapping LocatorPane and Button with e.g.
Column will prevent the error too. –  Kuba Dec 29 '13 at 21:21
as Kuba said, the problem is that you wrapped q2 in Dynamics.
Dynamics is for display only. Nothing that has Dynamics will be
understood by the Kernel. only the FE` understands dynamics. So
passing a Dynamics to PlotRange is not going to work. Dynamics
should be an outermost wrapper, something that can be only
handled by the FE' and not send to th