Kotlin插件错误：无法为类org.jetbrains.kotlin.gradle.tasks.KotlinCompile生成代理类

时间：2017-05-20 15:11:48

标签： gradle kotlin

尝试运行gradle任务时出错。无法弄清楚还需要什么或错误是什么。我正在开发的项目有几个子项目，所以我有一个main build.gradle。该错误是针对我想尝试Kotlin的子项目。

* Where: Build file '/home/oracle/bnc/KotlinHandler/build.gradle' line: 13

* What went wrong: A problem occurred evaluating root project 'KotlinHandler'.
> Failed to apply plugin [id 'kotlin']
   > Could not generate a proxy class for class org.jetbrains.kotlin.gradle.tasks.KotlinCompile.

这是我的build.gradle，用于失败的模块（子项目）。

buildscript {
    ext.kotlin_version = '1.1.2-2'

    repositories {
        mavenCentral()
    }

    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

apply plugin: 'kotlin'

repositories {
    mavenCentral()
}

dependencies {
    compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
}

由于其中的所有任务，这里Pastebin build.gradle非常大

在将jdk更改为1.8并将依赖项编译为compile "org.jetbrains.kotlin:kotlin-stdlib-jre8之后添加了--debug output

4 个答案:

答案 0 :(得分：7)

启动kotlin 1.1.2 kotlin编译器不再支持1.8以下的JDK，如1.1.2 blog post所示：

  

Kotlin编译器现在需要运行JDK 8。您不应该注意到任何更改，因为大多数其他Java开发工具（如Gradle和Android工具链）也需要JDK 8，因此您几乎肯定已经安装了它。对于编译器生成的代码，Java 1.6兼容性仍然是默认设置，我们没有计划放弃对生成Java 1.6兼容字节码的支持。

答案 1 :(得分：3)

在我的情况下，这是因为我正在使用java 1.7运行gradle，看起来插件只针对1.8进行编译：

16:48:42.742 [ERROR] [org.gradle.BuildExceptionReporter] Caused by: org.gradle.api.internal.plugins.PluginApplicationException: Failed to apply plugin [id 'kotlin']
16:48:42.742 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.plugins.DefaultPluginManager.doApply(DefaultPluginManager.java:153)
16:48:42.742 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.plugins.DefaultPluginManager.apply(DefaultPluginManager.java:112)
16:48:42.742 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction.applyType(DefaultObjectConfigurationAction.java:113)
16:48:42.742 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction.access$200(DefaultObjectConfigurationAction.java:36)
16:48:42.742 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction$3.run(DefaultObjectConfigurationAction.java:80)
16:48:42.742 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction.execute(DefaultObjectConfigurationAction.java:136)
16:48:42.742 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.project.AbstractPluginAware.apply(AbstractPluginAware.java:46)
16:48:42.742 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.project.ProjectScript.apply(ProjectScript.java:34)
16:48:42.742 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.Script$apply$1.callCurrent(Unknown Source)
16:48:42.742 [ERROR] [org.gradle.BuildExceptionReporter]        at build_4u37tyfuy0k7d4zd8vsk5lx9d.run(build.gradle:17)
16:48:42.743 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.groovy.scripts.internal.DefaultScriptRunnerFactory$ScriptRunnerImpl.run(DefaultScriptRunnerFactory.java:91)
16:48:42.743 [ERROR] [org.gradle.BuildExceptionReporter]        ... 63 more
16:48:42.743 [ERROR] [org.gradle.BuildExceptionReporter] Caused by: org.gradle.api.GradleException: Could not generate a proxy class for class org.jetbrains.kotlin.gradle.tasks.KotlinCompile.
16:48:42.743 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.AbstractClassGenerator.generateUnderLock(AbstractClassGenerator.java:201)
16:48:42.743 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.AbstractClassGenerator.generate(AbstractClassGenerator.java:64)
16:48:42.743 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.project.taskfactory.TaskFactory.create(TaskFactory.java:115)
16:48:42.743 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.project.taskfactory.TaskFactory.createTask(TaskFactory.java:77)
16:48:42.743 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory.createTask(AnnotationProcessingTaskFactory.java:101)
16:48:42.743 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.project.taskfactory.DependencyAutoWireTaskFactory.createTask(DependencyAutoWireTaskFactory.java:39)
16:48:42.743 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.tasks.DefaultTaskContainer.create(DefaultTaskContainer.java:62)
16:48:42.743 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.tasks.DefaultTaskContainer.create(DefaultTaskContainer.java:97)
16:48:42.743 [ERROR] [org.gradle.BuildExceptionReporter]        at org.jetbrains.kotlin.gradle.tasks.KotlinTasksProvider.createKotlinJVMTask(TasksProvider.kt:26)
16:48:42.743 [ERROR] [org.gradle.BuildExceptionReporter]        at org.jetbrains.kotlin.gradle.plugin.Kotlin2JvmSourceSetProcessor.doCreateTask(KotlinPlugin.kt:111)
16:48:42.744 [ERROR] [org.gradle.BuildExceptionReporter]        at org.jetbrains.kotlin.gradle.plugin.Kotlin2JvmSourceSetProcessor.doCreateTask(KotlinPlugin.kt:93)
16:48:42.744 [ERROR] [org.gradle.BuildExceptionReporter]        at org.jetbrains.kotlin.gradle.plugin.KotlinSourceSetProcessor.createKotlinCompileTask(KotlinPlugin.kt:83)
16:48:42.744 [ERROR] [org.gradle.BuildExceptionReporter]        at org.jetbrains.kotlin.gradle.plugin.KotlinSourceSetProcessor.<init>(KotlinPlugin.kt:56)
16:48:42.744 [ERROR] [org.gradle.BuildExceptionReporter]        at org.jetbrains.kotlin.gradle.plugin.Kotlin2JvmSourceSetProcessor.<init>(KotlinPlugin.kt:101)
16:48:42.744 [ERROR] [org.gradle.BuildExceptionReporter]        at org.jetbrains.kotlin.gradle.plugin.KotlinPlugin.buildSourceSetProcessor$kotlin_gradle_plugin_main(KotlinPlugin.kt:302)
16:48:42.744 [ERROR] [org.gradle.BuildExceptionReporter]        at org.jetbrains.kotlin.gradle.plugin.KotlinPlugin.buildSourceSetProcessor$kotlin_gradle_plugin_main(KotlinPlugin.kt:295)
16:48:42.744 [ERROR] [org.gradle.BuildExceptionReporter]        at org.jetbrains.kotlin.gradle.plugin.AbstractKotlinPlugin$configureSourceSetDefaults$1.execute(KotlinPlugin.kt:279)
16:48:42.744 [ERROR] [org.gradle.BuildExceptionReporter]        at org.jetbrains.kotlin.gradle.plugin.AbstractKotlinPlugin$configureSourceSetDefaults$1.execute(KotlinPlugin.kt:256)
16:48:42.744 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.DefaultDomainObjectCollection.all(DefaultDomainObjectCollection.java:110)
16:48:42.745 [ERROR] [org.gradle.BuildExceptionReporter]        at org.jetbrains.kotlin.gradle.plugin.AbstractKotlinPlugin.configureSourceSetDefaults(KotlinPlugin.kt:278)
16:48:42.745 [ERROR] [org.gradle.BuildExceptionReporter]        at org.jetbrains.kotlin.gradle.plugin.AbstractKotlinPlugin.apply(KotlinPlugin.kt:269)
16:48:42.745 [ERROR] [org.gradle.BuildExceptionReporter]        at org.jetbrains.kotlin.gradle.plugin.KotlinPlugin.apply(KotlinPlugin.kt:306)
16:48:42.745 [ERROR] [org.gradle.BuildExceptionReporter]        at org.jetbrains.kotlin.gradle.plugin.KotlinPlugin.apply(KotlinPlugin.kt:295)
16:48:42.745 [ERROR] [org.gradle.BuildExceptionReporter]        at org.jetbrains.kotlin.gradle.plugin.KotlinBasePluginWrapper.apply(KotlinPluginWrapper.kt:46)
16:48:42.745 [ERROR] [org.gradle.BuildExceptionReporter]        at org.jetbrains.kotlin.gradle.plugin.KotlinBasePluginWrapper.apply(KotlinPluginWrapper.kt:34)
16:48:42.745 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.plugins.ImperativeOnlyPluginApplicator.applyImperative(ImperativeOnlyPluginApplicator.java:35)
16:48:42.745 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.plugins.RuleBasedPluginApplicator.applyImperative(RuleBasedPluginApplicator.java:43)
16:48:42.745 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.plugins.DefaultPluginManager.doApply(DefaultPluginManager.java:137)
16:48:42.745 [ERROR] [org.gradle.BuildExceptionReporter]        ... 73 more
16:48:42.745 [ERROR] [org.gradle.BuildExceptionReporter] Caused by: java.lang.UnsupportedClassVersionError: org/jetbrains/kotlin/cli/common/arguments/K2JVMCompilerArguments : Unsupported major.minor version 52.0
16:48:42.745 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.internal.reflect.ClassInspector.inspectClass(ClassInspector.java:67)
16:48:42.745 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.internal.reflect.ClassInspector.visitGraph(ClassInspector.java:51)
16:48:42.745 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.internal.reflect.ClassInspector.inspect(ClassInspector.java:31)
16:48:42.746 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.AbstractClassGenerator.inspectType(AbstractClassGenerator.java:260)
16:48:42.746 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.AbstractClassGenerator.inspectType(AbstractClassGenerator.java:216)
16:48:42.746 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.AbstractClassGenerator.generateUnderLock(AbstractClassGenerator.java:95)

相关门票：https://youtrack.jetbrains.com/issue/KT-17866和https://youtrack.jetbrains.com/issue/KT-17297

答案 2 :(得分：1)

尽管您仍然仍然收到此错误：

  • 为您的JDK8安装设置 public function rules() { $client = Client::find($this->client); return [ 'name' => 'required|string', 'address' => 'required|string', 'gender' => 'required|string', 'dob' => 'required|string', 'phone' => 'required|string', 'email' => 'required|unique:clients,email,' . $client->id, 'password' => 'regex:/^[0-9a-zA-Z]*$/', 'profile-photo' => 'image|mimes:jpg,png,jpeg', 'c_name' => 'nullable|regex:/^[a-zA-Z ]*$/', 'c_address' => 'nullable|regex:/^[a-zA-Z ]*$/', 'c_email' => 'nullable|email|unique:clients,company_email,'. $client->id, 'c_contact' => 'nullable|regex:/^[0-9]*$/', ]; } 环境变量。
  • 在JAVA_HOME文件中更改sourceCompatibility。
  • 指向build.gradle文件中的JDK8。

您可能正在运行旧版本的gradle。

我在gradle gradle.properties上收到此错误，但是升级到version 3.2对我来说解决了该错误。

您可以从Gradle's Website下载最新版本。

更多信息here。

答案 3 :(得分：0)

尝试在jcenter()存储库中添加buildscript repo并更新kotlin版本。

buildscript {
  ext.kotlin_version = '1.1.2-4'
  repositories {
    mavenCentral()
    jcenter()
  }
  dependencies {
    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

  }
}

apply plugin: "kotlin"

repositories {
  mavenCentral()
  jcenter()
}

dependencies {

  compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
}

如果您要定位JDK 7或JDK 8，则可以使用Kotlin标准库的扩展版本，其中包含在新JDK版本中添加的API的其他扩展功能。而不是kotlin-stdlib，使用以下依赖项之一：

compile "org.jetbrains.kotlin:kotlin-stdlib-jre7"
compile "org.jetbrains.kotlin:kotlin-stdlib-jre8"
相关问题
最新问题