很紧急！！Unable to execute dex: Multiple dex files define ???

[tatajciliang]

运行代码的时候报如下错误，说让我先修好error再运行，但我不知道下面的报错是什么意思?

[2014-08-01 16:16:06 - Dex Loader] Unable to execute dex: Multiple dex files define Landroid/support/v4/accessibilityservice/AccessibilityServiceInfoCompat$AccessibilityServiceInfoVersionImpl;
[2014-08-01 16:16:06 - PhoneCMS] Conversion to Dalvik format failed: Unable to execute dex: Multiple dex files define Landroid/support/v4/accessibilityservice/AccessibilityServiceInfoCompat$AccessibilityServiceInfoVersionImpl;
[2014-08-01 16:16:22 - Dex Loader] Unable to execute dex: Multiple dex files define Landroid/support/v4/accessibilityservice/AccessibilityServiceInfoCompat$AccessibilityServiceInfoVersionImpl;
[2014-08-01 16:16:22 - PhoneCMS] Conversion to Dalvik format failed: Unable to execute dex: Multiple dex files define Landroid/support/v4/accessibilityservice/AccessibilityServiceInfoCompat$AccessibilityServiceInfoVersionImpl;
[2014-08-01 16:17:23 - Dex Loader] Unable to execute dex: Multiple dex files define Landroid/support/v4/accessibilityservice/AccessibilityServiceInfoCompat$AccessibilityServiceInfoVersionImpl;
[2014-08-01 16:17:23 - PhoneCMS] Conversion to Dalvik format failed: Unable to execute dex: Multiple dex files define Landroid/support/v4/accessibilityservice/AccessibilityServiceInfoCompat$AccessibilityServiceInfoVersionImpl;

[tatajciliang]

上面的问题解决了，删掉libs下的jar文件就可以 现在运行报这个错java.lang.NoClassDefFoundError: com.android.volley.toolbox.Volley

[sagittarius1988]

引入了第三方库？ 有两个v4包了

[tatajciliang]

日志文件如下，不知道是什么原因报如下错误 08-01 16:33:35.001: E/AndroidRuntime(31240): FATAL EXCEPTION: main 08-01 16:33:35.001: E/AndroidRuntime(31240): Process: cn.phonecms.main, PID: 31240 08-01 16:33:35.001: E/AndroidRuntime(31240): java.lang.NoClassDefFoundError: com.android.volley.toolbox.Volley 08-01 16:33:35.001: E/AndroidRuntime(31240): at cn.phonecms.main.LoginActivity.onCreate(LoginActivity.java:42) 08-01 16:33:35.001: E/AndroidRuntime(31240): at android.app.Activity.performCreate(Activity.java:5426) 08-01 16:33:35.001: E/AndroidRuntime(31240): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105) 08-01 16:33:35.001: E/AndroidRuntime(31240): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2269) 08-01 16:33:35.001: E/AndroidRuntime(31240): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2363) 08-01 16:33:35.001: E/AndroidRuntime(31240): at android.app.ActivityThread.access$900(ActivityThread.java:161) 08-01 16:33:35.001: E/AndroidRuntime(31240): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1265) 08-01 16:33:35.001: E/AndroidRuntime(31240): at android.os.Handler.dispatchMessage(Handler.java:102) 08-01 16:33:35.001: E/AndroidRuntime(31240): at android.os.Looper.loop(Looper.java:157) 08-01 16:33:35.001: E/AndroidRuntime(31240): at android.app.ActivityThread.main(ActivityThread.java:5356) 08-01 16:33:35.001: E/AndroidRuntime(31240): at java.lang.reflect.Method.invokeNative(Native Method) 08-01 16:33:35.001: E/AndroidRuntime(31240): at java.lang.reflect.Method.invoke(Method.java:515) 08-01 16:33:35.001: E/AndroidRuntime(31240): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1265) 08-01 16:33:35.001: E/AndroidRuntime(31240): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081) 08-01 16:33:35.001: E/AndroidRuntime(31240): at dalvik.system.NativeStart.main(Native Method)

[sinat_29953657]

谢谢！！！！！