achartengine曲线代码报错问题

from:http://www.eoeandroid.com/blog-646498-3788.html
官网:http://code.google.com/p/achartengine/
下载代码部署项目会报下面的错误:
java.lang.NoClassDefFoundError: org.achartengine.model.XYMultipleSeriesDataset
 
解决方法:
In Eclipse:
Right click your project - go to build path - select Configure build path
go to the "Order and Export" tab
Check the "achartengine-1.0.0.jar box and then single click its name
move it up so its right below the Android dependancies (sometimes this can make a difference if you have multiple Jars)
click ok then clean your project. (Project -> Clean...)