NoClassDefFoundError異常Android應用程序

我一直在嘗試在我的android應用程序中使用Sendgrid。這是我正在與其他3人合作的一個項目。該應用程序可在手機上和模擬器就好了，但它似乎總是在我的仿真器和手機死機與此錯誤消息NoClassDefFoundError異常Android應用程序

05-07 03:15:12.940: W/EGL_emulation(1336): eglSurfaceAttrib not implemented 
05-07 03:15:13.510: D/onDestroy(1336): 2014-05-07 03:15:11 
05-07 03:15:13.700: D/dalvikvm(1336): GC_CONCURRENT freed 338K, 33% free 3276K/4820K, paused 5ms+4ms, total 65ms 
05-07 03:15:13.790: E/dalvikvm(1336): Could not find class 'com.github.sendgrid.SendGrid', referenced from method edu.upenn.capsproject.SurveyActivity$SendEmailWithSendGrid.doInBackground 
05-07 03:15:13.790: W/dalvikvm(1336): VFY: unable to resolve new-instance 744 (Lcom/github/sendgrid/SendGrid;) in Ledu/upenn/capsproject/SurveyActivity$SendEmailWithSendGrid; 
05-07 03:15:13.790: D/dalvikvm(1336): VFY: replacing opcode 0x22 at 0x0001 
05-07 03:15:13.790: D/dalvikvm(1336): DexOpt: unable to opt direct call 0x1505 at 0x07 in Ledu/upenn/capsproject/SurveyActivity$SendEmailWithSendGrid;.doInBackground 
05-07 03:15:13.800: W/dalvikvm(1336): threadid=11: thread exiting with uncaught exception (group=0x40a71930) 
05-07 03:15:13.810: E/AndroidRuntime(1336): FATAL EXCEPTION: AsyncTask #1 
05-07 03:15:13.810: E/AndroidRuntime(1336): java.lang.RuntimeException: An error occured while executing doInBackground() 
05-07 03:15:13.810: E/AndroidRuntime(1336):  at android.os.AsyncTask$3.done(AsyncTask.java:299) 
05-07 03:15:13.810: E/AndroidRuntime(1336):  at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352) 
05-07 03:15:13.810: E/AndroidRuntime(1336):  at java.util.concurrent.FutureTask.setException(FutureTask.java:219) 
05-07 03:15:13.810: E/AndroidRuntime(1336):  at java.util.concurrent.FutureTask.run(FutureTask.java:239) 
05-07 03:15:13.810: E/AndroidRuntime(1336):  at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230) 
05-07 03:15:13.810: E/AndroidRuntime(1336):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080) 
05-07 03:15:13.810: E/AndroidRuntime(1336):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573) 
05-07 03:15:13.810: E/AndroidRuntime(1336):  at java.lang.Thread.run(Thread.java:856) 
05-07 03:15:13.810: E/AndroidRuntime(1336): Caused by: java.lang.NoClassDefFoundError: com.github.sendgrid.SendGrid 
05-07 03:15:13.810: E/AndroidRuntime(1336):  at edu.upenn.capsproject.SurveyActivity$SendEmailWithSendGrid.doInBackground(SurveyActivity.java:368) 
05-07 03:15:13.810: E/AndroidRuntime(1336):  at edu.upenn.capsproject.SurveyActivity$SendEmailWithSendGrid.doInBackground(SurveyActivity.java:1) 
05-07 03:15:13.810: E/AndroidRuntime(1336):  at android.os.AsyncTask$2.call(AsyncTask.java:287) 
05-07 03:15:13.810: E/AndroidRuntime(1336):  at java.util.concurrent.FutureTask.run(FutureTask.java:234) 
05-07 03:15:13.810: E/AndroidRuntime(1336):  ... 4 more 
05-07 03:15:15.219: W/EGL_emulation(1336): eglSurfaceAttrib not implemented 
05-07 03:15:16.289: I/Process(1336): Sending signal. PID: 1336 SIG: 9 
05-07 03:15:16.750: E/Trace(1362): error opening trace file: No such file or directory (2)

我有sendgrid-0.2.0-jar.jar.zip文件中的引用庫路徑。

來源

2014-05-07 CPride

看看這個[在Android中使用外部jar]（http://stackoverflow.com/questions/1334802/how-can-i-use-external-jars-in-an-android-project） –

我試過大部分已經。不幸的是，最高票數的答案沒有奏效。 – CPride

可能的美滿 - http://stackoverflow.com/questions/2247998/noclassdeffounderror-eclipse-and-android – Hulk

轉到項目/屬性/ Java構建路徑/順序和導出 - 確保在Android Dependencies和支持庫前面有一個檢查，如果您使用它。標記所有複選框並單擊應用並清理項目。

從我的答案複製上this後

希望這有助於。

來源

2014-05-07 03:54:26

這並沒有解決它不幸的。 – CPride

NoClassDefFoundError異常Android應用程序

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