java.lang.ClassNotFoundException:没有'；找不到类。。。在路径上：DexPathList

我正在制作一个android项目游戏，最近我在该项目中添加了一些库，但由于我添加了一些库，我得到了相同的错误：

dex2oat : Failed to create oat file: /data/dalvik-cache/arm/data@app@***.*******.*************-2@base.apk@classes.dex: Permission denied
    java.lang.ClassNotFoundException: Didn't find class "***.*******.*************.MainActivity" on path: DexPathList[[zip file "/data/app/***.*******.*************-1/base.apk"],nativeLibraryDirectories=[/data/app/***.*******.*************-1/lib/arm, /vendor/lib, /system/lib]]
03-25 10:34:07.084 15904 15904 E AndroidRuntime:        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3132)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3415)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:        at android.app.ActivityThread.access$1100(ActivityThread.java:229)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1821)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:        at android.os.Handler.dispatchMessage(Handler.java:102)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:        at android.os.Looper.loop(Looper.java:148)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:        at android.app.ActivityThread.main(ActivityThread.java:7325)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:        at java.lang.reflect.Method.invoke(Native Method)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
03-25 10:34:07.084 15904 15904 E AndroidRuntime: Caused by: java.lang.ClassNotFoundException: Didn't find class "com.compgal.stealthsmiley.MainActivity" on path: DexPathList[[zip file "/data/app/com.compgal.stealthsmiley-1/base.apk"],nativeLibraryDirectories=[/data/app/com.compgal.stealthsmiley-1/lib/arm, /vendor/lib, /system/lib]]
03-25 10:34:07.084 15904 15904 E AndroidRuntime:        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:        at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:        at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:        at android.app.Instrumentation.newActivity(Instrumentation.java:1096)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3122)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:        ... 9 more
03-25 10:34:07.084 15904 15904 E AndroidRuntime:        Suppressed: java.io.IOException: Failed to open dex files from /data/app/com.compgal.stealthsmiley-1/base.apk
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at dalvik.system.DexFile.openDexFileNative(Native Method)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at dalvik.system.DexFile.openDexFile(DexFile.java:295)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at dalvik.system.DexFile.<init>(DexFile.java:80)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at dalvik.system.DexFile.<init>(DexFile.java:59)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at dalvik.system.DexPathList.loadDexFile(DexPathList.java:279)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at dalvik.system.DexPathList.makePathElements(DexPathList.java:248)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at dalvik.system.DexPathList.<init>(DexPathList.java:120)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at dalvik.system.BaseDexClassLoader.<init>(BaseDexClassLoader.java:48)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at dalvik.system.PathClassLoader.<init>(PathClassLoader.java:65)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at android.app.ApplicationLoaders.getClassLoader(ApplicationLoaders.java:86)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at android.app.ApplicationLoaders.getClassLoader(ApplicationLoaders.java:47)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at android.app.LoadedApk.getClassLoader(LoadedApk.java:438)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at android.app.LoadedApk.makeApplication(LoadedApk.java:663)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6395)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at android.app.ActivityThread.access$1800(ActivityThread.java:229)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1887)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                ... 6 more
03-25 10:34:07.084 15904 15904 E AndroidRuntime:        Suppressed: java.lang.ClassNotFoundException: ***.*******.*************.MainActivity
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at java.lang.Class.classForName(Native Method)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
03-25 10:34:07.084 15904 15904 E AndroidRuntime:                ... 12 more
03-25 10:34:07.084 15904 15904 E AndroidRuntime:        Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available

我不知道现在该怎么办。 参考库：Google Play服务和Android支持v13。

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如果我删除了库，项目就可以正常运行。。。那么问题出在哪里呢？

好吧，经过长时间的搜索，发现问题出在android的sdk管理器上——我下载了所有的构建工具，而我只需要下载一个。 所以我删除了所有不必要的包，项目现在运行良好。

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感谢那些试图帮忙的人

我的问题通过：-1）清洁2）构建-->构建Apk解决。而这个Apk在早些时候工作得很好，我只是从应用程序->构建->输出->Apk应付

显示你的

build.gradle

我没有使用gradle或android studio。该项目是在netbeans框架上编写的。如果需要，我可以显示AndroidManifest.xml。有什么想法吗？？？清理您的项目尝试清理和重建。。。仍然没有成功当我尝试在物理设备上而不是Android Studio的模拟器上运行debug.apk文件时，我发现自己也遇到了同样的问题。。。看起来答案也适用于此场景…：）

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
          package="***.*******.*************"
          android:versionCode="7"
          android:versionName="1.5">
    <application android:label="@string/app_name" android:icon="@drawable/icon"
    >
        <meta-data android:name="com.google.android.gms.version"
    android:value="@integer/google_play_services_version" />
        <activity 
            android:screenOrientation="landscape"
            android:name="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>

dex2oat : Failed to create oat file: /data/dalvik-cache/arm/data@app@***.*******.*************-2@base.apk@classes.dex: Permission denied