安卓 AndroidRuntime：致命异常：java。lang.RuntimeException:无法实例化活动ComponentInfo在路径：DexPathList上未找到类

Question

在安卓 studio中创建项目后，我正在尝试打开应用程序。看看这个致命的错误！ im和Rid studio gradle 6.1.1 以及在Pixel_3a_API_30_x86上发布“应用程序”。 请帮我解决这个问题 我的构建工具版本是：28.0.3 最新版本是：16 编译DKVersion和targetsdkversion为：28

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.Sz_kudak, PID: 10679
    java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.Sz_kudak/com.Sz_kudak.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.Sz_kudak.MainActivity" on path: DexPathList[[zip file "/data/app/~~UEHehGZ-MmZxWNQoPPwEFQ==/com.Sz_kudak-TcCaMriiPjl5FkhdO0g3MA==/base.apk"],nativeLibraryDirectories=[/data/app/~~UEHehGZ-MmZxWNQoPPwEFQ==/com.Sz_kudak-TcCaMriiPjl5FkhdO0g3MA==/lib/x86, /data/app/~~UEHehGZ-MmZxWNQoPPwEFQ==/com.Sz_kudak-TcCaMriiPjl5FkhdO0g3MA==/base.apk!/lib/x86, /system/lib, /system_ext/lib, /product/lib]]
        at 安卓.app.ActivityThread.performLaunchActivity(ActivityThread.java:3365)
        at 安卓.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601)
        at 安卓.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
        at 安卓.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
        at 安卓.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
        at 安卓.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)
        at 安卓.os.Handler.dispatchMessage(Handler.java:106)
        at 安卓.os.Looper.loop(Looper.java:223)
        at 安卓.app.ActivityThread.main(ActivityThread.java:7656)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.安卓.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
        at com.安卓.internal.os.ZygoteInit.main(ZygoteInit.java:947)
     Caused by: java.lang.ClassNotFoundException: Didn't find class "com.Sz_kudak.MainActivity" on path: DexPathList[[zip file "/data/app/~~UEHehGZ-MmZxWNQoPPwEFQ==/com.Sz_kudak-TcCaMriiPjl5FkhdO0g3MA==/base.apk"],nativeLibraryDirectories=[/data/app/~~UEHehGZ-MmZxWNQoPPwEFQ==/com.Sz_kudak-TcCaMriiPjl5FkhdO0g3MA==/lib/x86, /data/app/~~UEHehGZ-MmZxWNQoPPwEFQ==/com.Sz_kudak-TcCaMriiPjl5FkhdO0g3MA==/base.apk!/lib/x86, /system/lib, /system_ext/lib, /product/lib]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:207)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
        at 安卓.app.AppComponentFactory.instantiateActivity(AppComponentFactory.java:95)
        at 安卓x.core.app.CoreComponentFactory.instantiateActivity(CoreComponentFactory.java:45)
        at 安卓.app.Instrumentation.newActivity(Instrumentation.java:1253)
        at 安卓.app.ActivityThread.performLaunchActivity(ActivityThread.java:3353)
        at 安卓.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601) 
        at 安卓.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85) 
        at 安卓.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135) 
        at 安卓.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95) 
        at 安卓.app.ActivityThread$H.handleMessage(ActivityThread.java:2066) 
        at 安卓.os.Handler.dispatchMessage(Handler.java:106) 
        at 安卓.os.Looper.loop(Looper.java:223) 
        at 安卓.app.ActivityThread.main(ActivityThread.java:7656) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.安卓.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) 
        at com.安卓.internal.os.ZygoteInit.main(ZygoteInit.java:947) 

我的安卓 AndroidManifest。xml:

<manifest xmlns:安卓="http://schemas.安卓.com/apk/res/安卓"
          package="com.Sz_kudak">

    <uses-permission 安卓:name="安卓.permission.INTERNET"/>

    <application
            安卓:name=".MainApplication"
            安卓:label="@string/app_name"
            安卓:icon="@mipmap/ic_launcher"
            安卓:roundIcon="@mipmap/ic_launcher_round"
            安卓:allowBackup="false"
            安卓:theme="@style/AppTheme"
            安卓:hardwareAccelerated="false"
            安卓:launchMode="singleTask">
        <activity
                安卓:name="com.Sz_kudak.MainActivity"
                安卓:label="@string/app_name"
                安卓:configChanges="keyboard|keyboardHidden|orientation|screenSize|uiMode"
                安卓:launchMode="singleTask"
                安卓:windowSoftInputMode="adjustResize">
            <intent-filter>
                <action 安卓:name="安卓.intent.action.MAIN"/>
                <category 安卓:name="安卓.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>
        <activity 安卓:name="com.facebook.react.devsupport.DevSettingsActivity"/>
        <meta-data 安卓:name="com.facebook.sdk.ApplicationId" 安卓:value="@string/facebook_app_id"/>
    </application>

</manifest>