我是android paypal集成的新手。我有一个jar文件，我把它包含在java构建路径中 开始运行该项目，但我收到了新的错误
[2014-06-09 16:08:23 - Sandeep] Dx
trouble writing output: already prepared
[2014-06-09 16:08:27 - Dex Loader] Unable to execute dex: Multiple dex files define Lcom/paypal/android/sdk/A;
[2014-06-09 16:08:27 - Sandeep] Conversion to Dalvik format failed: Unable to execute dex: Multiple dex files define Lcom/paypal/android/sdk/A;
我可以在添加PaypalAndroidSDK