These don't look like MASON errors. Instead it sounds like JFreeChart may have changed its library since Gabriel wrote his original simulation. I'm cc:ing Gabriel. Sean On Feb 8, 2011, at 3:16 PM, Yang, Ming wrote: > Hi: > I am new to Mason and have just downloaded Mason and the Urban > Traffic Simulator inside Mason ( and hopefully all the related > libraries). I have gotten Mason itself to compile/run smoothly but > when I compiled the traffic simulator, it (the Eclipse) reported the > following errors: > > Description Resource Path > Location Type > Cannot invoke elements() on the array type double[] > BoxAndWhiskerCalculator.java /mason/sim/util/jfreechart > line 32 Java Problem > Cannot invoke elements() on the array type double[] > BoxAndWhiskerCalculator.java /mason/sim/util/jfreechart > line 39 Java Problem > Cannot invoke elements() on the array type double[] > MyTallyInArray.java /mason/sim/util/stats line 143 Java > Problem > Cannot invoke elements() on the array type double[] > MyTallyInArray.java /mason/sim/util/stats line 144 Java > Problem > Cannot invoke elements() on the array type double[] > StatisticUtilities.java /mason/sim/util/stats line 256 Java > Problem > Cannot invoke elements() on the array type double[] > StatisticUtilities.java /mason/sim/util/stats line 257 Java > Problem > Cannot invoke elements() on the array type double[] > TripDelayByLength.java /mason/sim/app/traffic/ > analysis line 296 Java Problem > Cannot invoke sort() on the array type double[] > MyTallyInArray.java /mason/sim/util/stats line 54 Java > Problem > The return type is incompatible with Tally.clone() > TallyInABag.java /mason/sim/util/stats line 69 > Java Problem > The type Console is ambiguous > DeficitGridCityTrafficSimWithUI.java /mason/sim/app/traffic/ > analysis/creditdeficit line 41 Java Problem > The type Console is ambiguous > DeficitGridCityTrafficSimWithUI.java /mason/sim/app/traffic/ > analysis/creditdeficit line 41 Java Problem > Type mismatch: cannot convert from double[] to > DoubleArrayList MyTallyInArray.java /mason/sim/ > util/stats line 60 Java Problem > Type mismatch: cannot convert from double[] to > DoubleArrayList MyTallyInArray.java /mason/sim/ > util/stats line 94 Java Problem > Type mismatch: cannot convert from double[] to > DoubleArrayList RankTTestAnalysis.java /mason/sim/util/ > stats line 169 Java Problem > > Do you know where the errors may come from? Are these errors due to > some libraries out of sync?