Question

我在我的项目中使用Kotlin和数据绑定，在最近升级到Android Studio 3.1.0后，我不断在Android支持插件中看到很多例外：

无法初始化类android.databinding.tool.ext.ExtKt java.lang.NoClassDefFoundError：无法初始化类 android.databinding.tool.ext.ExtKt at android.databinding.tool.reflection.ModelClass.getTypeName（ModelClass.java:688）在 android.databinding.tool.reflection.ModelClass.equals（ModelClass.java:694）在 android.databinding.tool.reflection.ModelClass.findSetter（ModelClass.java:614）在 android.databinding.tool.reflection.ModelClass.findGetterOrField（ModelClass.java:523）在 com.android.tools.idea.lang.databinding.DataBindingXmlReferenceContributor $ 2.getReferencesByElement（DataBindingXmlReferenceContributor.java:196）在 com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistryImpl.getReferences（ReferenceProvidersRegistryImpl.java:135）在 com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistryImpl.mapNotEmptyReferencesFromProviders（ReferenceProvidersRegistryImpl.java:123）在 com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistryImpl.doGetReferencesFromProviders（ReferenceProvidersRegistryImpl.java:102）在 com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistry.getReferencesFromProviders（ReferenceProvidersRegistry.java:59）在 com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistry.getReferencesFromProviders（ReferenceProvidersRegistry.java:53）在 com.android.tools.idea.lang.databinding.DataBindingPsiElement.getReferences（DataBindingPsiElement.java:32）在 org.intellij.plugins.intelliLang.references.InjectedReferencesContributor.getInjectedReferences（InjectedReferencesContributor.java:56）在 org.intellij.plugins.intelliLang.references.InjectedReferencesInspection $ 1.visitElement（InjectedReferencesInspection.java:40）在 com.intellij.psi.impl.PsiElementBase.accept（PsiElementBase.java:274）在 com.android.tools.idea.lang.databinding.psi.impl.PsiDbExprImpl.accept（PsiDbExprImpl.java:43）在 com.android.tools.idea.lang.databinding.psi.impl.PsiDbRefExprImpl.accept（PsiDbRefExprImpl.java:42）在 com.intellij.codeInspection.InspectionEngine.acceptElements（InspectionEngine.java:82）在 com.intellij.codeInspection.InspectionEngine.createVisitorAndAcceptElements（InspectionEngine.java:70）在 com.intellij.codeInsight.daemon.impl.LocalInspectionsPass.doInspectInjectedPsi（LocalInspectionsPass.java:750）在 com.intellij.codeInsight.daemon.impl.LocalInspectionsPass.lambda $ inspectInjectedPsi $ 6（LocalInspectionsPass.java:338）在 com.intellij.concurrency.ApplierCompleter.execAndForkSubTasks（ApplierCompleter.java:133）在 com.intellij.concurrency.ApplierCompleter.tryToExecAllList（ApplierCompleter.java:223）在 com.intellij.concurrency.ApplierCompleter.execAndForkSubTasks（ApplierCompleter.java:151）在 com.intellij.openapi.application.impl.ApplicationImpl.tryRunReadAction（ApplicationImpl.java:1125）在 com.intellij.concurrency.ApplierCompleter.lambda $ wrapInReadActionAndIndicator $ 1（ApplierCompleter.java:105）在 com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun（CoreProgressManager.java:543）在 com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress（CoreProgressManager.java:488）在 com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress（ProgressManagerImpl.java:94）在 com.intellij.concurrency.ApplierCompleter.wrapInReadActionAndIndicator（ApplierCompleter.java:116）在 com.intellij.concurrency.ApplierCompleter.lambda $计算$ 0（ApplierCompleter.java:96）在 com.intellij.openapi.application.impl.ReadMostlyRWLock.executeByImpatientReader（ReadMostlyRWLock.java:143）在 com.intellij.openapi.application.impl.ApplicationImpl.executeByImpatientReader（ApplicationImpl.java:229）在 com.intellij.concurrency.ApplierCompleter.compute（ApplierCompleter.java:96）在 java.util.concurrent.CountedCompleter.exec（CountedCompleter.java:731） at java.util.concurrent.ForkJoinTask.doExec（ForkJoinTask.java:289）在 java.util.concurrent.ForkJoinPool $ WorkQueue.pollAndExecCC（ForkJoinPool.java:1190）在 java.util.concurrent.ForkJoinPool.helpComplete（ForkJoinPool.java:1879）在 java.util.concurrent.ForkJoinPool.awaitJoin（ForkJoinPool.java:2045）在java.util.concurrent.ForkJoinTask.doJoin（ForkJoinTask.java:390）在java.util.concurrent.ForkJoinTask.join（ForkJoinTask.java:719）at java.util.concurrent.ForkJoinPool.invoke（ForkJoinPool.java:2616）at at com.intellij.concurrency.JobLauncherImpl.invokeConcurrentlyUnderProgress（JobLauncherImpl.java:65）在 com.intellij.concurrency.JobLauncher.invokeConcurrentlyUnderProgress（JobLauncher.java:57）在 com.intellij.codeInsight.daemon.impl.LocalInspectionsPass.inspectInjectedPsi（LocalInspectionsPass.java:341）在 com.intellij.codeInsight.daemon.impl.LocalInspectionsPass.inspect（LocalInspectionsPass.java:231）在 com.intellij.codeInsight.daemon.impl.LocalInspectionsPass.collectInformationWithProgress（LocalInspectionsPass.java:136）在 com.intellij.codeInsight.daemon.impl.ProgressableTextEditorHighlightingPass.doCollectInformation（ProgressableTextEditorHighlightingPass.java:83）在 com.intellij.codeHighlighting.TextEditorHighlightingPass.collectInformation（TextEditorHighlightingPass.java:70）在 com.intellij.codeInsight.daemon.impl.PassExecutorService $ ScheduledPass.lambda为$ null $ 1（PassExecutorService.java:437）在 com.intellij.openapi.application.impl.ApplicationImpl.tryRunReadAction（ApplicationImpl.java:1130）在 com.intellij.codeInsight.daemon.impl.PassExecutorService $ ScheduledPass.lambda $ doRun $ 2（PassExecutorService.java:430）在 com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun（CoreProgressManager.java:543）在 com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress（CoreProgressManager.java:488）在 com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress（ProgressManagerImpl.java:94）在 com.intellij.codeInsight.daemon.impl.PassExecutorService $ ScheduledPass.doRun（PassExecutorService.java:429）在 com.intellij.codeInsight.daemon.impl.PassExecutorService $ ScheduledPass.lambda $运行$ 0（PassExecutorService.java:405）在 com.intellij.openapi.application.impl.ReadMostlyRWLock.executeByImpatientReader（ReadMostlyRWLock.java:143）在 com.intellij.openapi.application.impl.ApplicationImpl.executeByImpatientReader（ApplicationImpl.java:229）在 com.intellij.codeInsight.daemon.impl.PassExecutorService $ ScheduledPass.run（PassExecutorService.java:403）在 com.intellij.concurrency.JobLauncherImpl $ VoidForkJoinTask $ 1.exec（JobLauncherImpl.java:170） at java.util.concurrent.ForkJoinTask.doExec（ForkJoinTask.java:289）在 java.util.concurrent.ForkJoinPool $ WorkQueue.runTask（ForkJoinPool.java:1056）在 java.util.concurrent.ForkJoinPool.runWorker（ForkJoinPool.java:1692）在 java.util.concurrent.ForkJoinWorkerThread.run（ForkJoinWorkerThread.java:157）

我的主要 build.gradle

buildscript {
    ext.kotlin_version = '1.2.31'
    ext.protobuf_version = '3.0.0'
    ext.anko_version='0.10.4'

    repositories {
        google()
        jcenter()
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.0'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath 'com.google.protobuf:protobuf-gradle-plugin:0.8.5'
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

应用 build.gradle

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'
apply plugin: 'kotlin-kapt'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'project-report'

android {
    compileSdkVersion 27
    buildToolsVersion "27.0.3"

    defaultConfig {
        applicationId "com.myapp"
        minSdkVersion 16
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        vectorDrawables.useSupportLibrary = true

        javaCompileOptions {
            annotationProcessorOptions {
                arguments = ["room.schemaLocation": "$projectDir/schemas".toString()]
            }
        }
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    dataBinding {
        enabled = true
    }
}

kapt {
    useBuildCache = true
    mapDiagnosticLocations = true
}

dependencies {
    implementation project(':proto')

    implementation "android.arch.persistence.room:runtime:1.0.0"
    implementation 'com.android.support:recyclerview-v7:27.1.0'
    kapt "android.arch.persistence.room:compiler:1.0.0"
    kapt "com.android.databinding:compiler:3.1.0"

    implementation "android.arch.lifecycle:extensions:1.1.1"
    implementation "android.arch.lifecycle:common-java8:1.1.1"

    implementation 'com.auth0.android:jwtdecode:1.1.1'
    implementation 'com.squareup.okhttp3:okhttp:3.9.1'

    // Anko
    implementation "org.jetbrains.anko:anko-sdk15:$anko_version"
    implementation "org.jetbrains.anko:anko-appcompat-v7:$anko_version"

    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
    implementation 'com.android.support:appcompat-v7:27.1.0'
    implementation 'com.android.support:design:27.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    implementation 'com.android.support:support-v4:27.1.0'
    implementation 'com.android.support:support-vector-drawable:27.1.0'

    testImplementation 'junit:junit:4.12'

    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    //noinspection GradleDependency
    androidTestImplementation 'org.exparity:hamcrest-date:1.1.0'
}

gradle.properties

org.gradle.jvmargs=-Xmx2048m
kotlin.incremental.usePreciseJavaTracking=true
android.enableD8=true
android.databinding.enableV2=true

gradle-wrapper.properties

distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip

到目前为止，我已经尝试过：

使缓存无效并重新启动
重新进口项目
清理并重建
无先前配置的清洁安装+重新导入项目+未安装额外插件
在gradle.properties中按一个或全部注释掉每一行+ invalidate并重新启动
在gradle中尝试implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"＆＃34;以防万一＆＃34;

在每个文件中几乎没有任何帮助和错误。正如我所知，这与绑定和kotlin有关。

有没有人遇到过这个问题？

PS

在布局xml文件中，甚至没有突出显示不存在的字符串资源，例如@string/non_existing_title - 只显示为有效的字符串资源（即使在干净安装后）。虽然我不确定此问题是否与报告的例外有关。

更新1

我发现Invalidate＆amp;重启另一个异常抛出一次：

com/squareup/javapoet/TypeName
java.lang.NoClassDefFoundError: com/squareup/javapoet/TypeName
    at android.databinding.tool.ext.ExtKt.<clinit>(ext.kt:180)
    at android.databinding.tool.reflection.ModelClass.getTypeName(ModelClass.java:688)
    at android.databinding.tool.reflection.ModelClass.equals(ModelClass.java:694)
    at android.databinding.tool.reflection.ModelClass.findSetter(ModelClass.java:614)
    at android.databinding.tool.reflection.ModelClass.findGetterOrField(ModelClass.java:523)
....
Caused by: java.lang.ClassNotFoundException: com.squareup.javapoet.TypeName PluginClassLoader[org.jetbrains.android, 10.3.1] com.intellij.ide.plugins.cl.PluginClassLoader@19c41e97
    at com.intellij.ide.plugins.cl.PluginClassLoader.loadClass(PluginClassLoader.java:63)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 63 more

我已尝试添加javapoet依赖项，但此异常在失效后仍会抛出一次。然后，最初只报告Could not initialize class android.databinding.tool.ext.ExtKt个异常。

Answer 1

经过一些犹豫，我决定搬到金丝雀频道并安装Android Studio Canary 10（导入之前的设置），现在的规格是：

Android Studio 3.2 Canary 10 Build #AI-181.2784.17.32.4705630, built on April 7, 2018
JRE: 1.8.0_152-release-1136-b01 amd64 
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o Linux 4.13.0-38-generic

在安装时，我遇到了kotlin没有找到很多课程的多个问题;无效并重新启动，清理/重建没有帮助。

然后我刚刚从插件部分卸载了Kotlin插件，看起来重启后它恢复了原始版本，我没有遇到任何问题。

目前的Kotlin插件版本：版本：1.2.31-Studio3.2-1

最后一切都按预期工作。 @Yazazzello，感谢您对Android Studio Canary＃10的反馈。

将Android Studio升级到3.1.0后，Android支持插件错误

1 个答案: