net.sf.json.JSONObject cannot be resolved

[facc]

在项目中写了个方法并可能在main中运行也没有错
但是项目启动时出现了
Internal Server Error (500) for request GET /

Compilation error (In /app/com/buybal/client/test/JunitClientTest.java around li
ne 16)
The file /app/com/buybal/client/test/JunitClientTest.java could not be compiled.
Error raised is : net.sf.json.JSONObject cannot be resolved

项目是用play运行的 请问一下是什么原因

[KK3K2005]

The file /app/com/buybal/client/test/JunitClientTest.java could not be compiled. Error raised is : net.sf.json.JSONObject cannot be resolved

[孟子E章]

没有json包，最好使用这个
http://code.alibabatech.com/wiki/display/FastJSON/Home

[facc]

找到原因 了谢谢 大家

[且走且珍惜]

引用 3 楼 qq411728860 的回复:

找到原因 了谢谢 大家

什么原因啊？