我在maclipse中添加了一个带有maven的库项目，当运行low时错误返回错误：
01-15 07:35:31.324: E/AndroidRuntime(2783): FATAL EXCEPTION: main
01-15 07:35:31.324: E/AndroidRuntime(2783): Process: com.example.testenfce, PID: 2783
01-15 07:35:31.324: E/AndroidRuntime(2783): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.testenfce/com.example.testenfce.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.example.testenfce.MainActivity" on path: DexPathList[[zip file "/data/app/com.example.testenfce-2/base.apk"],nativeLibraryDirectories=[/data/app/com.example.testenfce-2/lib/x86, /vendor/lib, /system/lib]]
01-15 07:35:31.324: E/AndroidRuntime(2783): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2327)
01-15 07:35:31.324: E/AndroidRuntime(2783): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
01-15 07:35:31.324: E/AndroidRuntime(2783): at android.app.ActivityThread.-wrap11(ActivityThread.java)
01-15 07:35:31.324: E/AndroidRuntime(2783): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
01-15 07:35:31.324: E/AndroidRuntime(2783): at android.os.Handler.dispatchMessage(Handler.java:102)
01-15 07:35:31.324: E/AndroidRuntime(2783): at android.os.Looper.loop(Looper.java:148)
01-15 07:35:31.324: E/AndroidRuntime(2783): at android.app.ActivityThread.main(ActivityThread.java:5417)
01-15 07:35:31.324: E/AndroidRuntime(2783): at java.lang.reflect.Method.invoke(Native Method)
01-15 07:35:31.324: E/AndroidRuntime(2783): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
01-15 07:35:31.324: E/AndroidRuntime(2783): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
01-15 07:35:31.324: E/AndroidRuntime(2783): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.testenfce.MainActivity" on path: DexPathList[[zip file "/data/app/com.example.testenfce-2/base.apk"],nativeLibraryDirectories=[/data/app/com.example.testenfce-2/lib/x86, /vendor/lib, /system/lib]]
01-15 07:35:31.324: E/AndroidRuntime(2783): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
01-15 07:35:31.324: E/AndroidRuntime(2783): at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
01-15 07:35:31.324: E/AndroidRuntime(2783): at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
01-15 07:35:31.324: E/AndroidRuntime(2783): at android.app.Instrumentation.newActivity(Instrumentation.java:1067)
01-15 07:35:31.324: E/AndroidRuntime(2783): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2317)
01-15 07:35:31.324: E/AndroidRuntime(2783): ... 9 more
01-15 07:35:31.324: E/AndroidRuntime(2783): Suppressed: java.lang.ClassNotFoundException: com.example.testenfce.MainActivity
01-15 07:35:31.324: E/AndroidRuntime(2783): at java.lang.Class.classForName(Native Method)
01-15 07:35:31.324: E/AndroidRuntime(2783): at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
01-15 07:35:31.324: E/AndroidRuntime(2783): at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
01-15 07:35:31.324: E/AndroidRuntime(2783): at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
01-15 07:35:31.324: E/AndroidRuntime(2783): ... 12 more
01-15 07:35:31.324: E/AndroidRuntime(2783): Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
我现在创建了项目并且只有MainActivity，在添加库之后，项目运行时出现错误MainActivity
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.testenfce"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="23" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.testenfce.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>