Android：无法实例化应用程序

问题描述 投票：0回答：1

我有一个应用程序，我在其中实现了匕首，当午餐时我的应用程序出现此错误：-

FATAL EXCEPTION: main
Process: com.heet.sleepmagic, PID: 18977
java.lang.RuntimeException: Unable to instantiate application com.heet.sleepmagic.MainApp package com.heet.sleepmagic: java.lang.ClassNotFoundException: Didn't find class "com.heet.sleepmagic.MainApp" on path: DexPathList[[zip file "/data/app/~~vhnGOdaJiLk6ztERW8DzSg==/com.heet.sleepmagic-8TvtgzEu5imBuAIS-WXaGQ==/base.apk"],nativeLibraryDirectories=[/data/app/~~vhnGOdaJiLk6ztERW8DzSg==/com.heet.sleepmagic-8TvtgzEu5imBuAIS-WXaGQ==/lib/x86_64, /system/lib64, /system_ext/lib64]]
at android.app.LoadedApk.makeApplicationInner(LoadedApk.java:1466)
at android.app.LoadedApk.makeApplicationInner(LoadedApk.java:1395)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6720)
at android.app.ActivityThread.-$$Nest$mhandleBindApplication(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2133)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loopOnce(Looper.java:201)
at android.os.Looper.loop(Looper.java:288)
at android.app.ActivityThread.main(ActivityThread.java:7872)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.heet.sleepmagic.MainApp" on path: DexPathList[[zip file "/data/app/~~vhnGOdaJiLk6ztERW8DzSg==/com.heet.sleepmagic-8TvtgzEu5imBuAIS-WXaGQ==/base.apk"],nativeLibraryDirectories=[/data/app/~~vhnGOdaJiLk6ztERW8DzSg==/com.heet.sleepmagic-8TvtgzEu5imBuAIS-WXaGQ==/lib/x86_64, /system/lib64, /system_ext/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:259)
at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at android.app.AppComponentFactory.instantiateApplication(AppComponentFactory.java:76)
at androidx.core.app.CoreComponentFactory.instantiateApplication(CoreComponentFactory.java:52)
at android.app.Instrumentation.newApplication(Instrumentation.java:1243)
at android.app.LoadedApk.makeApplicationInner(LoadedApk.java:1458)
at android.app.LoadedApk.makeApplicationInner(LoadedApk.java:1395) 
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6720) 
at android.app.ActivityThread.-$$Nest$mhandleBindApplication(Unknown Source:0) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2133)
at android.os.Handler.dispatchMessage(Handler.java:106) 
at android.os.Looper.loopOnce(Looper.java:201) 
at android.os.Looper.loop(Looper.java:288) 
at android.app.ActivityThread.main(ActivityThread.java:7872) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936) 
Suppressed: java.lang.NoClassDefFoundError: Failed resolution of: Lcom/heet/sleepmagic/Hilt_MainApp;
at java.lang.VMClassLoader.findLoadedClass(Native Method)
at java.lang.ClassLoader.findLoadedClass(ClassLoader.java:738)
at java.lang.ClassLoader.loadClass(ClassLoader.java:363)
... 16 more
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.heet.sleepmagic.Hilt_MainApp" on path: DexPathList[[zip file "/data/app/~~vhnGOdaJiLk6ztERW8DzSg==/com.heet.sleepmagic-8TvtgzEu5imBuAIS-WXaGQ==/base.apk"],nativeLibraryDirectories=[/data/app/~~vhnGOdaJiLk6ztERW8DzSg==/com.heet.sleepmagic-8TvtgzEu5imBuAIS-WXaGQ==/lib/x86_64, /system/lib64, /system_ext/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:259)
at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
... 19 more

我的build.gradle是这样的:-

 plugins {
    id("com.android.application")
    id("org.jetbrains.kotlin.android")
    id ("dagger.hilt.android.plugin")
}

android {
    namespace = "com.heet.sleepmagic"
    compileSdk = 34

    defaultConfig {
        applicationId = "com.heet.sleepmagic"
        minSdk = 24
        targetSdk = 34
        versionCode = 1
        versionName = "1.0"

        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
        vectorDrawables {
            useSupportLibrary = true
        }
    }

    buildTypes {
        release {
            isMinifyEnabled = false
            proguardFiles(
                getDefaultProguardFile("proguard-android-optimize.txt"),
                "proguard-rules.pro"
            )
        }
    }
    compileOptions {
        sourceCompatibility = JavaVersion.VERSION_1_8
        targetCompatibility = JavaVersion.VERSION_1_8
    }
    kotlinOptions {
        jvmTarget = "1.8"
    }
    buildFeatures {
        compose = true
    }
    composeOptions {
        kotlinCompilerExtensionVersion = "1.4.3"
    }
    packaging {
        resources {
            excludes += "/META-INF/{AL2.0,LGPL2.1}"
        }
    }
}

dependencies {

    implementation("androidx.core:core-ktx:1.9.0")
    implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.6.2")
    implementation("androidx.activity:activity-compose:1.8.0")
    implementation(platform("androidx.compose:compose-bom:2023.03.00"))
    implementation("androidx.compose.ui:ui")
    implementation("androidx.compose.ui:ui-graphics")
    implementation("androidx.compose.ui:ui-tooling-preview")
    implementation("androidx.compose.material3:material3")
    testImplementation("junit:junit:4.13.2")
    androidTestImplementation("androidx.test.ext:junit:1.1.5")
    androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
    androidTestImplementation(platform("androidx.compose:compose-bom:2023.03.00"))
    androidTestImplementation("androidx.compose.ui:ui-test-junit4")
    debugImplementation("androidx.compose.ui:ui-tooling")
    debugImplementation("androidx.compose.ui:ui-test-manifest")

    // Compose dependencies
    implementation ("androidx.lifecycle:lifecycle-viewmodel-compose:2.6.2")
    implementation ("androidx.navigation:navigation-compose:2.7.4")

    //Dagger - Hilt
    implementation ("com.google.dagger:hilt-android:2.42")
    annotationProcessor ("com.google.dagger:hilt-android-compiler:2.42")
    annotationProcessor ("androidx.hilt:hilt-compiler:1.0.0")
    implementation ("androidx.hilt:hilt-navigation-compose:1.0.0")

    //Coil
    implementation ("io.coil-kt:coil-compose:2.3.0")
}

我的清单是这样的：-

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools">

    <application
        android:allowBackup="true"
        android:dataExtractionRules="@xml/data_extraction_rules"
        android:fullBackupContent="@xml/backup_rules"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:name=".MainApp"
        android:theme="@style/Theme.SleepMagic"
        tools:targetApi="31">
        <activity
            android:name=".MainActivity"
            android:exported="true"
            android:label="@string/app_name"
            android:theme="@style/Theme.SleepMagic">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

我的应用课程：-

package com.heet.sleepmagic

import android.app.Application
import dagger.hilt.android.HiltAndroidApp

@HiltAndroidApp 
class MainApp:Application()

我的主要活动：-

package com.heet.sleepmagic

import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Surface
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.sp
import androidx.navigation.compose.rememberNavController
import com.heet.sleepmagic.ui.navigation.Navigation
import com.heet.sleepmagic.ui.theme.HattonFontFamily
import com.heet.sleepmagic.ui.theme.HattonTypography
import com.heet.sleepmagic.ui.theme.SleepMagicTheme
import dagger.hilt.android.AndroidEntryPoint

@AndroidEntryPoint
class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            SleepMagicTheme {
                Navigation(navController = rememberNavController())
            }
        }
    }
}

这个错误是在我将 android studio 更新为 Giraffe | 后出现的。 2022.3.1，我认为这是因为任何匕首的类别问题或其他问题。帮助我，这将非常感激。谢谢你。

我真的很感谢你的回答。谢谢你。

android kotlin dagger-2 dagger-hilt
1个回答
0
投票

在你的 AndroidManifest.xml 中，你已经声明了一个

<application
    android:name=".MainApp"

您需要拥有（或创建）一个扩展 android.app.Application 的 com.heet.sleepmagic.MainApp 类。

或者直接删除该线。

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