Właśnie próbowałem użyć dema achartengine, ale za każdym razem, gdy klikam coś, aby wyświetlić wykres, pojawia się błąd „Aplikacja AChartengine nieoczekiwanie się zatrzymała. Spróbuj ponownie”. Ktoś wie, jak mi powiedzieć, jak mogę to zrobić? Postępowałem zgodnie z instrukcjami sugerowanymi na tej stroniehttp://www.achartengine.org/content/goodies.html i używam standardu emulatora z poziomem api 7. Mam te błędy:

<code>    04-15 09:08:43.285: E/dalvikvm(333): Could not find class '[Lorg.achartengine.chart.PointStyle;', referenced from method org.achartengine.chartdemo.demo.chart.AverageTemperatureChart.execute
    04-15 09:08:43.325: E/dalvikvm(333): Could not find class 'org.achartengine.model.XYSeries', referenced from method org.achartengine.chartdemo.demo.chart.AbstractDemoChart.addXYSeries
    04-15 09:08:43.345: E/dalvikvm(333): Could not find class 'org.achartengine.model.XYMultipleSeriesDataset', referenced from method org.achartengine.chartdemo.demo.chart.AbstractDemoChart.buildBarDataset
    04-15 09:08:43.387: E/dalvikvm(333): Could not find class 'org.achartengine.renderer.XYMultipleSeriesRenderer', referenced from method org.achartengine.chartdemo.demo.chart.AbstractDemoChart.buildBarRenderer
    04-15 09:08:43.395: E/dalvikvm(333): Could not find class 'org.achartengine.model.CategorySeries', referenced from method org.achartengine.chartdemo.demo.chart.AbstractDemoChart.buildCategoryDataset
    04-15 09:08:43.425: E/dalvikvm(333): Could not find class 'org.achartengine.renderer.DefaultRenderer', referenced from method org.achartengine.chartdemo.demo.chart.AbstractDemoChart.buildCategoryRenderer
    04-15 09:08:43.425: E/dalvikvm(333): Could not find class 'org.achartengine.model.XYMultipleSeriesDataset', referenced from method org.achartengine.chartdemo.demo.chart.AbstractDemoChart.buildDataset
    04-15 09:08:43.445: E/dalvikvm(333): Could not find class 'org.achartengine.model.XYMultipleSeriesDataset', referenced from method org.achartengine.chartdemo.demo.chart.AbstractDemoChart.buildDateDataset
    04-15 09:08:43.445: E/dalvikvm(333): Could not find class 'org.achartengine.model.MultipleCategorySeries', referenced from method org.achartengine.chartdemo.demo.chart.AbstractDemoChart.buildMultipleCategoryDataset
    04-15 09:08:43.485: E/dalvikvm(333): Could not find class 'org.achartengine.renderer.XYMultipleSeriesRenderer', referenced from method org.achartengine.chartdemo.demo.chart.AbstractDemoChart.buildRenderer
    04-15 09:08:43.525: E/dalvikvm(333): Could not find class '[Lorg.achartengine.chart.PointStyle;', referenced from method org.achartengine.chartdemo.demo.chart.AverageCubicTemperatureChart.execute
    04-15 09:08:43.545: E/dalvikvm(333): Could not find class '[Lorg.achartengine.chart.PointStyle;', referenced from method org.achartengine.chartdemo.demo.chart.TrigonometricFunctionsChart.execute
    04-15 09:08:43.555: E/dalvikvm(333): Could not find class '[Lorg.achartengine.chart.PointStyle;', referenced from method org.achartengine.chartdemo.demo.chart.ScatterChart.execute
    04-15 09:08:43.555: E/dalvikvm(333): Could not find class '[Lorg.achartengine.chart.PointStyle;', referenced from method org.achartengine.chartdemo.demo.chart.SalesComparisonChart.execute
    04-15 09:08:43.565: E/dalvikvm(333): Could not find class '[Lorg.achartengine.chart.PointStyle;', referenced from method org.achartengine.chartdemo.demo.chart.ProjectStatusChart.execute
    04-15 09:08:43.576: E/dalvikvm(333): Could not find class '[Lorg.achartengine.chart.PointStyle;', referenced from method org.achartengine.chartdemo.demo.chart.SalesGrowthChart.execute
    04-15 09:08:43.595: E/dalvikvm(333): Could not find class 'org.achartengine.model.XYMultipleSeriesDataset', referenced from method org.achartengine.chartdemo.demo.chart.ProjectStatusBubbleChart.execute
    04-15 09:08:43.606: E/dalvikvm(333): Could not find class 'org.achartengine.model.XYMultipleSeriesDataset', referenced from method org.achartengine.chartdemo.demo.chart.TemperatureChart.execute
    04-15 09:08:43.606: E/dalvikvm(333): Could not find class 'org.achartengine.model.CategorySeries', referenced from method org.achartengine.chartdemo.demo.chart.WeightDialChart.execute
    04-15 09:08:43.615: E/dalvikvm(333): Could not find class '[Lorg.achartengine.chart.PointStyle;', referenced from method org.achartengine.chartdemo.demo.chart.SensorValuesChart.execute
    04-15 09:08:43.615: E/dalvikvm(333): Could not find class '[Lorg.achartengine.chart.PointStyle;', referenced from method org.achartengine.chartdemo.demo.chart.CombinedTemperatureChart.execute
    04-15 09:08:43.626: E/dalvikvm(333): Could not find class '[Lorg.achartengine.chart.PointStyle;', referenced from method org.achartengine.chartdemo.demo.chart.MultipleTemperatureChart.execute
    04-15 09:13:51.145: E/AndroidRuntime(333): Uncaught handler: thread main exiting due to uncaught exception
    04-15 09:13:51.155: E/AndroidRuntime(333): java.lang.NoClassDefFoundError: [Lorg.achartengine.chart.PointStyle;
    04-15 09:13:51.155: E/AndroidRuntime(333):  at org.achartengine.chartdemo.demo.chart.AverageTemperatureChart.execute(AverageTemperatureChart.java:72)
    04-15 09:13:51.155: E/AndroidRuntime(333):  at org.achartengine.chartdemo.demo.ChartDemo.onListItemClick(ChartDemo.java:102)
    04-15 09:13:51.155: E/AndroidRuntime(333):  at android.app.ListActivity$2.onItemClick(ListActivity.java:312)
    04-15 09:13:51.155: E/AndroidRuntime(333):  at android.widget.AdapterView.performItemClick(AdapterView.java:284)
    04-15 09:13:51.155: E/AndroidRuntime(333):  at android.widget.ListView.performItemClick(ListView.java:3285)
    04-15 09:13:51.155: E/AndroidRuntime(333):  at android.widget.AbsListView$PerformClick.run(AbsListView.java:1640)
    04-15 09:13:51.155: E/AndroidRuntime(333):  at android.os.Handler.handleCallback(Handler.java:587)
    04-15 09:13:51.155: E/AndroidRuntime(333):  at android.os.Handler.dispatchMessage(Handler.java:92)
    04-15 09:13:51.155: E/AndroidRuntime(333):  at android.os.Looper.loop(Looper.java:123)
    04-15 09:13:51.155: E/AndroidRuntime(333):  at android.app.ActivityThread.main(ActivityThread.java:4363)
    04-15 09:13:51.155: E/AndroidRuntime(333):  at java.lang.reflect.Method.invokeNative(Native Method)
    04-15 09:13:51.155: E/AndroidRuntime(333):  at java.lang.reflect.Method.invoke(Method.java:521)
    04-15 09:13:51.155: E/AndroidRuntime(333):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
    04-15 09:13:51.155: E/AndroidRuntime(333):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
    04-15 09:13:51.155: E/AndroidRuntime(333):  at dalvik.system.NativeStart.main(Native Method)
    04-15 09:13:51.175: E/dalvikvm(333): Unable to open stack trace file '/data/anr/traces.txt': Permission denied
</code>