将MainActivity转换为Kotlin之后的后续构建中的ClassNotFoundException
我想给Kotlin一个尝试，所以我决定尝试将我的项目的单个类转换为Kotlin，并在尝试转换整个项目之前查看它如何与我的工作流程集成。 我能够构建和我的应用程序正常工作，但在第一个后，每一个后续的构建，我从ClassLoader下面的异常。 该应用程序只能清理后正常工作，并在我转换任何东西之前工作正常。 我可以在同一台机器上多次运行HelloWorld项目，而不会出错。 在这个问题中的回应没有帮助： 在使用kotlin的自定义风格的ClassNotFoundException
07-31 14:35:41.563 1878-1878/com.ddiehl.android.htn.debug E/AndroidRuntime﹕ FATAL EXCEPTION: main Process: com.ddiehl.android.htn.debug, PID: 1878 java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.ddiehl.android.htn.debug/com.ddiehl.android.htn.view.activities.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.ddiehl.android.htn.view.activities.MainActivity" on path: DexPathList[[zip file "/data/app/com.ddiehl.android.htn.debug-1/base.apk"],nativeLibraryDirectories=[/data/app/com.ddiehl.android.htn.debug-1/lib/arm, /vendor/lib, /system/lib]] at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360) at android.app.ActivityThread.access$800(ActivityThread.java:144) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5221) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694) Caused by: java.lang.ClassNotFoundException: Didn't find class "com.ddiehl.android.htn.view.activities.MainActivity" on path: DexPathList[[zip file "/data/app/com.ddiehl.android.htn.debug-1/base.apk"],nativeLibraryDirectories=[/data/app/com.ddiehl.android.htn.debug-1/lib/arm, /vendor/lib, /system/lib]] at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56) at java.lang.ClassLoader.loadClass(ClassLoader.java:511) at java.lang.ClassLoader.loadClass(ClassLoader.java:469) at android.app.Instrumentation.newActivity(Instrumentation.java:1065) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2199) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360) at android.app.ActivityThread.access$800(ActivityThread.java:144) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5221) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694) Suppressed: java.lang.ClassNotFoundException: com.ddiehl.android.htn.view.activities.MainActivity at java.lang.Class.classForName(Native Method) at java.lang.BootClassLoader.findClass(ClassLoader.java:781) at java.lang.BootClassLoader.loadClass(ClassLoader.java:841) at java.lang.ClassLoader.loadClass(ClassLoader.java:504) ... 13 more Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available 任何人都有一个想法，为什么我的应用程序可能在第一次构建工作，但不是在后续的构建？ 这里是我的build.gradle，manifest和activity，供参考。
build.gradle（应用程序模块）
apply plugin: 'com.android.application' apply plugin: 'kotlin-android' apply plugin: 'com.jakewharton.hugo' apply plugin: 'com.getkeepsafe.dexcount' apply plugin: 'me.tatarka.retrolambda' android { compileSdkVersion 22 buildToolsVersion "23 rc3" defaultConfig { applicationId "com.ddiehl.android.htn" minSdkVersion 15 targetSdkVersion 22 versionCode 4 versionName "0.3.0-dev" ndk { moduleName "app" } } signingConfigs { release { storeFile file(ANDROID_KEYSTORE_PATH) storePassword ANDROID_KEYSTORE_PWD keyAlias HTN_KEYSTORE_ALIAS keyPassword HTN_KEYSTORE_PWD } } buildTypes { debug { applicationIdSuffix ".debug" minifyEnabled false } release { debuggable false minifyEnabled true proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' signingConfig signingConfigs.release } } compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } sourceSets { main.java.srcDirs += 'src/main/kotlin' debug.java.srcDirs += 'src/debug/kotlin' } } def getLocalProperty(s) { Properties properties = new Properties() properties.load(project.rootProject.file('local.properties').newDataInputStream()) return properties.getProperty(s) } retrolambda { jdk getLocalProperty("jdk8.dir") } dependencies { compile project(':reddit') compile project(':mopub') compile project(':flurry') compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version" compile 'com.android.support:appcompat-v7:22.2.1' compile 'com.android.support:support-v4:22.2.1' compile 'com.android.support:design:22.2.0' compile 'com.android.support:recyclerview-v7:22.2.1' compile 'com.android.support:cardview-v7:22.2.1' compile 'com.google.android.gms:play-services-ads:7.5.0' compile 'com.squareup.okhttp:okhttp:2.4.0' compile 'com.squareup.okhttp:okhttp-urlconnection:2.4.0' compile 'com.squareup.retrofit:retrofit:1.9.0' compile 'com.squareup:otto:1.3.5' compile 'com.squareup.picasso:picasso:2.5.2' compile 'com.jakewharton:butterknife:7.0.0' compile 'com.jakewharton:kotterknife:0.1.0-SNAPSHOT' compile 'io.reactivex:rxandroid:0.25.0' compile 'com.facebook.stetho:stetho:1.1.1' compile 'com.facebook.stetho:stetho-okhttp:1.1.1' debugCompile 'com.squareup.leakcanary:leakcanary-android:1.3.1' releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.3.1' } buildscript { ext.kotlin_version = '0.12.1230' repositories { mavenCentral() maven { url 'http://oss.sonatype.org/content/repositories/snapshots' } } dependencies { classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" } } repositories { mavenCentral() maven { url 'http://oss.sonatype.org/content/repositories/snapshots' } }
AndroidManifest.xml中
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.ddiehl.android.htn" > <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <application android:name="com.ddiehl.android.htn.HoldTheNarwhal" android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" android:supportsRtl="true"> <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" /> <activity android:name="com.ddiehl.android.htn.view.activities.MainActivity" android:label="@string/app_name" android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> <intent-filter> <action android:name="android.intent.action.VIEW" /> <category android:name="android.intent.category.DEFAULT" /> <category android:name="android.intent.category.BROWSABLE" /> <data android:host="www.damiendiehl.net" android:scheme="http" /> </intent-filter> </activity> </application> </manifest>
MainActivity.kt（我编辑了大部分与View有关的逻辑，它是400行，这是一个闭源项目，如果需要，我可以将整个文件粘贴）。
package com.ddiehl.android.htn.view.activities import android.app.Dialog import android.app.ProgressDialog import android.os.AsyncTask import android.os.Build import android.os.Bundle import android.support.design.widget.NavigationView import android.support.design.widget.Snackbar import android.support.v4.content.ContextCompat import android.support.v4.view.GravityCompat import android.support.v4.widget.DrawerLayout import android.support.v7.app.AppCompatActivity import android.support.v7.widget.Toolbar import android.view.MenuItem import android.view.View import android.view.Window import android.widget.EditText import android.widget.ImageView import android.widget.TextView import butterknife.Bind import butterknife.ButterKnife import butterknife.OnClick import butterknife.bindView import com.flurry.android.FlurryAgent import com.flurry.android.FlurryAgentListener import com.mopub.common.MoPub import com.mopub.mobileads.MoPubConversionTracker import hugo.weaving.DebugLog import java.util.HashMap import kotlin.properties.Delegates public class MainActivity : AppCompatActivity(), MainView, ConfirmSignOutDialog.Callbacks, NavigationView.OnNavigationItemSelectedListener { private val mBus = BusProvider.getInstance() private var mMainPresenter: MainPresenter? = null private var mLastAuthCode: String? = null private var mProgressBar: ProgressDialog? = null private var mSubredditNavigationDialog: Dialog? = null val mDrawerLayout: DrawerLayout by bindView(R.id.drawer_layout) private var mAccessTokenManager: AccessTokenManager? = null DebugLog override fun onCreate(savedInstanceState: Bundle?) { super<AppCompatActivity>.onCreate(savedInstanceState) setContentView(R.layout.activity_main) ButterKnife.bind(this@MainActivity) Init().execute() } private inner class Init : AsyncTask<Void, Void, Void>() { override fun onPreExecute() { super.onPreExecute() mNavigationView.setNavigationItemSelectedListener(this@MainActivity) val toolbar = ButterKnife.findById<Toolbar>(this@MainActivity, R.id.toolbar) setSupportActionBar(toolbar) val actionBar = getSupportActionBar() if (actionBar != null) { actionBar.setHomeAsUpIndicator(R.drawable.ic_navigation_menu) actionBar.setDisplayHomeAsUpEnabled(true) } } override fun doInBackground(vararg params: Void): Void? { mAccessTokenManager = AccessTokenManager.getInstance(this@MainActivity) return null } override fun onPostExecute(aVoid: Void?) { super.onPostExecute(aVoid) onAppInitialized() } } override fun onStart() { super<AppCompatActivity>.onStart() if (mAccessTokenManager == null) { showSpinner(R.string.application_loading) } else { onAppInitialized() } } private fun onAppInitialized() { mBus.register(mAccessTokenManager) FlurryAgent.onStartSession(this) dismissSpinner() updateUserIdentity() showSubredditIfEmpty(null) } override fun onStop() { super<AppCompatActivity>.onStop() FlurryAgent.onEndSession(this) mBus.unregister(mAccessTokenManager) } companion object { public val TAG: String = javaClass<MainActivity>().getSimpleName() private val DIALOG_CONFIRM_SIGN_OUT = "dialog_confirm_sign_out" private val FLURRY_SESSION_TIMEOUT_SECONDS = 30 } }
一个可能的原因可能是注释处理库。