I use Kotlin and databinding for my project, after recent upgrade to Android Studio 3.1.0 I constantly see a lot of exceptions in Android Support plugin:

Could not initialize class android.databinding.tool.ext.ExtKt java.lang.NoClassDefFoundError: Could not initialize class android.databinding.tool.ext.ExtKt 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) at com.android.tools.idea.lang.databinding.DataBindingXmlReferenceContributor$2.getReferencesByElement(DataBindingXmlReferenceContributor.java:196) at com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistryImpl.getReferences(ReferenceProvidersRegistryImpl.java:135) at com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistryImpl.mapNotEmptyReferencesFromProviders(ReferenceProvidersRegistryImpl.java:123) at com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistryImpl.doGetReferencesFromProviders(ReferenceProvidersRegistryImpl.java:102) at com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistry.getReferencesFromProviders(ReferenceProvidersRegistry.java:59) at com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistry.getReferencesFromProviders(ReferenceProvidersRegistry.java:53) at com.android.tools.idea.lang.databinding.DataBindingPsiElement.getReferences(DataBindingPsiElement.java:32) at org.intellij.plugins.intelliLang.references.InjectedReferencesContributor.getInjectedReferences(InjectedReferencesContributor.java:56) at org.intellij.plugins.intelliLang.references.InjectedReferencesInspection$1.visitElement(InjectedReferencesInspection.java:40) at com.intellij.psi.impl.PsiElementBase.accept(PsiElementBase.java:274) at com.android.tools.idea.lang.databinding.psi.impl.PsiDbExprImpl.accept(PsiDbExprImpl.java:43) at com.android.tools.idea.lang.databinding.psi.impl.PsiDbRefExprImpl.accept(PsiDbRefExprImpl.java:42) at com.intellij.codeInspection.InspectionEngine.acceptElements(InspectionEngine.java:82) at com.intellij.codeInspection.InspectionEngine.createVisitorAndAcceptElements(InspectionEngine.java:70) at com.intellij.codeInsight.daemon.impl.LocalInspectionsPass.doInspectInjectedPsi(LocalInspectionsPass.java:750) at com.intellij.codeInsight.daemon.impl.LocalInspectionsPass.lambda$inspectInjectedPsi$6(LocalInspectionsPass.java:338) at com.intellij.concurrency.ApplierCompleter.execAndForkSubTasks(ApplierCompleter.java:133) at com.intellij.concurrency.ApplierCompleter.tryToExecAllList(ApplierCompleter.java:223) at com.intellij.concurrency.ApplierCompleter.execAndForkSubTasks(ApplierCompleter.java:151) at com.intellij.openapi.application.impl.ApplicationImpl.tryRunReadAction(ApplicationImpl.java:1125) at com.intellij.concurrency.ApplierCompleter.lambda$wrapInReadActionAndIndicator$1(ApplierCompleter.java:105) at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:543) at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:488) at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:94) at com.intellij.concurrency.ApplierCompleter.wrapInReadActionAndIndicator(ApplierCompleter.java:116) at com.intellij.concurrency.ApplierCompleter.lambda$compute$0(ApplierCompleter.java:96) at com.intellij.openapi.application.impl.ReadMostlyRWLock.executeByImpatientReader(ReadMostlyRWLock.java:143) at com.intellij.openapi.application.impl.ApplicationImpl.executeByImpatientReader(ApplicationImpl.java:229) at com.intellij.concurrency.ApplierCompleter.compute(ApplierCompleter.java:96) at java.util.concurrent.CountedCompleter.exec(CountedCompleter.java:731) at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) at java.util.concurrent.ForkJoinPool$WorkQueue.pollAndExecCC(ForkJoinPool.java:1190) at java.util.concurrent.ForkJoinPool.helpComplete(ForkJoinPool.java:1879) at java.util.concurrent.ForkJoinPool.awaitJoin(ForkJoinPool.java:2045) at java.util.concurrent.ForkJoinTask.doJoin(ForkJoinTask.java:390) at java.util.concurrent.ForkJoinTask.join(ForkJoinTask.java:719) at java.util.concurrent.ForkJoinPool.invoke(ForkJoinPool.java:2616) at com.intellij.concurrency.JobLauncherImpl.invokeConcurrentlyUnderProgress(JobLauncherImpl.java:65) at com.intellij.concurrency.JobLauncher.invokeConcurrentlyUnderProgress(JobLauncher.java:57) at com.intellij.codeInsight.daemon.impl.LocalInspectionsPass.inspectInjectedPsi(LocalInspectionsPass.java:341) at com.intellij.codeInsight.daemon.impl.LocalInspectionsPass.inspect(LocalInspectionsPass.java:231) at com.intellij.codeInsight.daemon.impl.LocalInspectionsPass.collectInformationWithProgress(LocalInspectionsPass.java:136) at com.intellij.codeInsight.daemon.impl.ProgressableTextEditorHighlightingPass.doCollectInformation(ProgressableTextEditorHighlightingPass.java:83) at com.intellij.codeHighlighting.TextEditorHighlightingPass.collectInformation(TextEditorHighlightingPass.java:70) at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.lambda$null$1(PassExecutorService.java:437) at com.intellij.openapi.application.impl.ApplicationImpl.tryRunReadAction(ApplicationImpl.java:1130) at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.lambda$doRun$2(PassExecutorService.java:430) at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:543) at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:488) at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:94) at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.doRun(PassExecutorService.java:429) at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.lambda$run$0(PassExecutorService.java:405) at com.intellij.openapi.application.impl.ReadMostlyRWLock.executeByImpatientReader(ReadMostlyRWLock.java:143) at com.intellij.openapi.application.impl.ApplicationImpl.executeByImpatientReader(ApplicationImpl.java:229) at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.run(PassExecutorService.java:403) at com.intellij.concurrency.JobLauncherImpl$VoidForkJoinTask$1.exec(JobLauncherImpl.java:170) at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692) at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)

My main 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
}

Application 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'
}

还有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

So far I have tried:

  • Invalidate cache and restart
  • 再进口项目
  • 清清楚楚
  • Clean install without former configurations + reimport project + no extra plugins installed
  • In gradle.properties commenting out each line by one or all of them + invalidate and restart
  • 在gradle试了implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"次"以防万一"

Nothing helped and errors still pop up almost in each file. As I can see this somehow is related to binding and kotlin.

有没有人遇到过这个问题?

PS

在布局xml文件中,甚至不会突出显示不存在的字符串资源,例如@string/non_existing_title-只是作为有效的字符串资源出现(即使在干净安装之后).

UPDATE 1

I noticed that after Invalidate & restart another exception is thrown once:

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

我试图添加JavaPoter依赖项,但在失效后仍会抛出一次此异常.然后,按照最初的报告,只抛出Could not initialize class android.databinding.tool.ext.ExtKt个异常.

推荐答案

After some hesitations I decided to move to canary channel and installed Android Studio Canary 10 (importing previous settings), and now specifications are:

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,我遇到了多个问题,kotlin找不到很多类;无效并重新启动,清理/重建没有帮助.

Then I just uninstalled Kotlin plugin from Plugins section and it looks like after restart it was restored with original version and I have no problems since.

当前Kotlin插件版本:Version: 1.2.31-Studio3.2-1

最后一切都按预期进行@Yazazzello,感谢您对Android Studio Canary#10的反馈.

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