Eclipse Android：没找到类

概述我正在使用GoogleAppEngine创建以下关于创建Android应用程序的教程：https://cloud.google.com/developers/articles/how-to-build-mobile-app-with-app-engine-backend-tutorial我在Windows7中使用Eclipse.我到了运行应用程序的部分,以显示“places.csv”中新上传的信息.问题是

我正在使用Google App Engine创建以下关于创建Android应用程序的教程：https://cloud.google.com/developers/articles/how-to-build-mobile-app-with-app-engine-backend-tutorial

我在windows 7中使用Eclipse.我到了运行应用程序的部分,以显示“places.csv”中新上传的信息.问题是我收到以下错误：

03-15 17:00:31.137: E/AndroIDRuntime(1151): FATAL EXCEPTION: main03-15 17:00:31.137: E/AndroIDRuntime(1151): Process: com.apps.mobileassistant, PID: 115103-15 17:00:31.137: E/AndroIDRuntime(1151): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.apps.mobileassistant/com.apps.mobileassistant.MainActivity}: java.lang.classNotFoundException: DIDn't find class "com.apps.mobileassistant.MainActivity" on path: DexPathList[[zip file "/data/app/com.apps.mobileassistant-2.apk"],nativelibraryDirectorIEs=[/data/app-lib/com.apps.mobileassistant-2, /system/lib]]03-15 17:00:31.137: E/AndroIDRuntime(1151):     at androID.app.ActivityThread.performlaunchActivity(ActivityThread.java:2102)03-15 17:00:31.137: E/AndroIDRuntime(1151):     at androID.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2226)03-15 17:00:31.137: E/AndroIDRuntime(1151):     at androID.app.ActivityThread.access0(ActivityThread.java:135)03-15 17:00:31.137: E/AndroIDRuntime(1151):     at androID.app.ActivityThread$H.handleMessage(ActivityThread.java:1397)03-15 17:00:31.137: E/AndroIDRuntime(1151):     at androID.os.Handler.dispatchMessage(Handler.java:102)03-15 17:00:31.137: E/AndroIDRuntime(1151):     at androID.os.Looper.loop(Looper.java:137)03-15 17:00:31.137: E/AndroIDRuntime(1151):     at androID.app.ActivityThread.main(ActivityThread.java:4998)03-15 17:00:31.137: E/AndroIDRuntime(1151):     at java.lang.reflect.Method.invokeNative(Native Method)03-15 17:00:31.137: E/AndroIDRuntime(1151):     at java.lang.reflect.Method.invoke(Method.java:515)03-15 17:00:31.137: E/AndroIDRuntime(1151):     at com.androID.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777)03-15 17:00:31.137: E/AndroIDRuntime(1151):     at com.androID.internal.os.ZygoteInit.main(ZygoteInit.java:593)03-15 17:00:31.137: E/AndroIDRuntime(1151):     at dalvik.system.NativeStart.main(Native Method)03-15 17:00:31.137: E/AndroIDRuntime(1151): Caused by: java.lang.classNotFoundException: DIDn't find class "com.apps.mobileassistant.MainActivity" on path: DexPathList[[zip file "/data/app/com.apps.mobileassistant-2.apk"],nativelibraryDirectorIEs=[/data/app-lib/com.apps.mobileassistant-2, /system/lib]]03-15 17:00:31.137: E/AndroIDRuntime(1151):     at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)03-15 17:00:31.137: E/AndroIDRuntime(1151):     at java.lang.classLoader.loadClass(ClassLoader.java:497)03-15 17:00:31.137: E/AndroIDRuntime(1151):     at java.lang.classLoader.loadClass(ClassLoader.java:457)03-15 17:00:31.137: E/AndroIDRuntime(1151):     at androID.app.Instrumentation.newActivity(Instrumentation.java:1061)03-15 17:00:31.137: E/AndroIDRuntime(1151):     at androID.app.ActivityThread.performlaunchActivity(ActivityThread.java:2093)

MobileAssistant App Manifest.xml

<?xml version="1.0" enCoding="utf-8" standalone="no"?><manifest xmlns:androID="http://schemas.androID.com/apk/res/androID" androID:versionCode="1" androID:versionname="1.0" package="com.apps.mobileassistant">    <uses-sdk androID:minSdkVersion="10" androID:targetSdkVersion="19"/>    <uses-permission androID:name="androID.permission.INTERNET"/>   <permission androID:name="com.apps.mobileassistant.permission.C2D_MESSAGE" androID:protectionLevel="signature"/>   <uses-permission androID:name="com.apps.mobileassistant.permission.C2D_MESSAGE"/>   <uses-permission androID:name="com.Google.androID.c2dm.permission.RECEIVE"/>   <uses-permission androID:name="androID.permission.WAKE_LOCK"/>   <uses-permission androID:name="androID.permission.GET_ACCOUNTS"/>   <uses-permission androID:name="androID.permission.USE_CREDENTIALS"/>   <application androID:allowBackup="true" androID:icon="@drawable/ic_launcher" androID:label="@string/app_name" androID:theme="@style/Apptheme">        <activity androID:label="@string/app_name" androID:name="com.apps.mobileassistant.MainActivity">            <intent-filter>                <action androID:name="androID.intent.action.MAIN"/>                <category androID:name="androID.intent.category.LAUNCHER"/>            </intent-filter>        </activity>        <service androID:name=".GCMIntentService"/>        <receiver androID:name="com.Google.androID.gcm.GCMbroadcastReceiver" androID:permission="com.Google.androID.c2dm.permission.SEND">            <intent-filter>                <action androID:name="com.Google.androID.c2dm.intent.RECEIVE"/>                <category androID:name="com.apps.mobileassistant"/>            </intent-filter>            <intent-filter>                <action androID:name="com.Google.androID.c2dm.intent.REGISTRATION"/>                <category androID:name="com.apps.mobileassistant"/>            </intent-filter>        </receiver>        <activity androID:launchMode="singletop" androID:name=".Registeractivity"/></application></manifest>

此外,当处于调试模式时,我在Thread [< 1>]中得到“Source Not Found”错误.主要].

有人可以帮我弄这个吗？

解决方法:

就像您当前的消息错误对您说的一样：

ComponentInfo{com.apps.mobileassistant/com.apps.mobileassistant.MainActivity}:java.lang.classNotFoundException: DIDn't find class "com.apps.mobileassistant.MainActivity" on path: DexPathList[[zip file "/data/app/com.apps.mobileassistant-2.apk"],nativelibraryDirectorIEs=[/data/app-lib/com.apps.mobileassistant-2

您要么在设置项目和所需的库时犯了一些错误,要么只是缺少一些类,或者没有通过导入和类名在代码中通知相应的类.

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