Question

我已按照official guide中的说明完成了Android Studio 3中一些项目的迁移，但我在尝试运行endpointsDiscoveryDocs目标时遇到错误gradle在App Engine端点后端模块上。

错误是嵌套NoClassDefFound初始化GenClientLibAction：

引起：java.lang.NoClassDefFoundError：无法初始化类 com.google.api.server.spi.tools.GenClientLibAction

这是我的设置文件：

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.google.cloud.tools:endpoints-framework-gradle-plugin:1.0.2'
        classpath 'com.google.cloud.tools:appengine-gradle-plugin:1.3.3'
    }
}

repositories {
    jcenter();
}

apply plugin: 'java'
apply plugin: 'war'
//apply plugin: 'appengine'
apply plugin: 'com.google.cloud.tools.appengine'  // App Engine tasks
apply plugin: 'com.google.cloud.tools.endpoints-framework-server'


sourceCompatibility = JavaVersion.VERSION_1_7
targetCompatibility = JavaVersion.VERSION_1_7

dependencies {
    //appengineSdk 'com.google.appengine:appengine-java-sdk:1.9.54'
    providedCompile group: 'javax.servlet', name: 'servlet-api', version:'2.5'


    compile 'com.google.endpoints:endpoints-framework:2.0.8'
    compile 'com.google.endpoints:endpoints-framework-tools:2.0.8'

    compile 'javax.inject:javax.inject:1'
    compile 'javax.servlet:servlet-api:2.5'


    implementation 'com.googlecode.objectify:objectify:5.1.17'
    implementation 'com.ganyo:gcm-server:1.0.2'
    implementation 'com.google.firebase:firebase-server-sdk:3.0.3'
    implementation 'com.google.appengine.tools:appengine-gcs-client:0.6'

}
endpointsServer {
    // Endpoints Framework Plugin server-side configuration
    hostname = "libre-gluten.appspot.com"
}

堆栈如下

org.gradle.api.tasks.TaskExecutionException：任务执行失败＆＃39;：后端：endpointsDiscoveryDocs＆＃39 ;. at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions（ExecuteActionsTaskExecuter.java:100）在org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute（ExecuteActionsTaskExecuter.java:70）在org.gradle.api.internal.tasks.execution.SkipCachedTaskExecuter.execute（SkipCachedTaskExecuter.java:106）在org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute（SkipUpToDateTaskExecuter.java:63）在org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute（ResolveTaskOutputCachingStateExecuter.java:54）在org.gradle.api.internal.tasks.execution.ResolveBuildCacheKeyExecuter.execute（ResolveBuildCacheKeyExecuter.java:60）在org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute（ValidatingTaskExecuter.java:58）在org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute（SkipEmptySourceFilesTaskExecuter.java:88）在org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute（ResolveTaskArtifactStateTaskExecuter.java:52）在org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute（SkipTaskWithNoActionsExecuter.java:52）在org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute（SkipOnlyIfTaskExecuter.java:54）在org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute（ExecuteAtMostOnceTaskExecuter.java:43）在org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute（CatchExceptionTaskExecuter.java:34）在org.gradle.execution.taskgraph.DefaultTaskGraphExecuter $ EventFiringTaskWorker $ 1.run（DefaultTaskGraphExecuter.java:248）在org.gradle.internal.progress.DefaultBuildOperationExecutor $ RunnableBuildOperationWorker.execute（DefaultBuildOperationExecutor.java:336）在org.gradle.internal.progress.DefaultBuildOperationExecutor $ RunnableBuildOperationWorker.execute（DefaultBuildOperationExecutor.java:328）在org.gradle.internal.progress.DefaultBuildOperationExecutor.execute（DefaultBuildOperationExecutor.java:197）在org.gradle.internal.progress.DefaultBuildOperationExecutor.run（DefaultBuildOperationExecutor.java:107）在org.gradle.execution.taskgraph.DefaultTaskGraphExecuter $ EventFiringTaskWorker.execute（DefaultTaskGraphExecuter.java:241）在org.gradle.execution.taskgraph.DefaultTaskGraphExecuter $ EventFiringTaskWorker.execute（DefaultTaskGraphExecuter.java:230） at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor $ TaskExecutorWorker.processTask（DefaultTaskPlanExecutor.java:124）在org.gradle.execution.taskgraph.DefaultTaskPlanExecutor $ TaskExecutorWorker.access $ 200（DefaultTaskPlanExecutor.java:80） at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor $ TaskExecutorWorker $ 1.execute（DefaultTaskPlanExecutor.java:105）在org.gradle.execution.taskgraph.DefaultTaskPlanExecutor $ TaskExecutorWorker $ 1.execute（DefaultTaskPlanExecutor.java:99）在org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.execute（DefaultTaskExecutionPlan.java:625） at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.executeWithTask（DefaultTaskExecutionPlan.java:580） at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor $ TaskExecutorWorker.run（DefaultTaskPlanExecutor.java:99） at org.gradle.internal.concurrent.ExecutorPolicy $ CatchAndRecordFailures.onExecute（ExecutorPolicy.java:63） at org.gradle.internal.concurrent.ManagedExecutorImpl $ 1.run（ManagedExecutorImpl.java:46） at org.gradle.internal.concurrent.ThreadFactoryImpl $ ManagedThreadRunnable.run（ThreadFactoryImpl.java:55）引起：java.lang.NoClassDefFoundError：无法初始化类com.google.api.server.spi.tools.GenClientLibAction 在com.google.api.server.spi.tools.EndpointsTool。（EndpointsTool.java:55）在com.google.cloud.tools.gradle.endpoints.framework.server.task.GenerateDiscoveryDocsTask.generateDiscoveryDocs(GenerateDiscoveryDocsTask.java:137）在org.gradle.internal.reflect.JavaMethod.invoke（JavaMethod.java:73） at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore $ StandardTaskAction.doExecute（DefaultTaskClassInfoStore.java:141）在org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore $ StandardTaskAction.execute（DefaultTaskClassInfoStore.java:134）在org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore $ StandardTaskAction.execute（DefaultTaskClassInfoStore.java:121）在org.gradle.api.internal.AbstractTask $ TaskActionWrapper.execute（AbstractTask.java:731）在org.gradle.api.internal.AbstractTask $ TaskActionWrapper.execute（AbstractTask.java:705）在org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter $ 1.run（ExecuteActionsTaskExecuter.java:122）在org.gradle.internal.progress.DefaultBuildOperationExecutor $ RunnableBuildOperationWorker.execute（DefaultBuildOperationExecutor.java:336）在org.gradle.internal.progress.DefaultBuildOperationExecutor $ RunnableBuildOperationWorker.execute（DefaultBuildOperationExecutor.java:328）在org.gradle.internal.progress.DefaultBuildOperationExecutor.execute（DefaultBuildOperationExecutor.java:197）在org.gradle.internal.progress.DefaultBuildOperationExecutor.run（DefaultBuildOperationExecutor.java:107）在org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction（ExecuteActionsTaskExecuter.java:111）在org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions（ExecuteActionsTaskExecuter.java:92） ... 29更多

Github项目中已经有open issue，但项目业主没有反馈意见。

由于这个问题，我有几个停止的项目，有人遇到过此问题，有关如何解决此错误的想法吗？

Google Cloud端点迁移到V2：任务执行失败＆＃39;：后端：endpointsDiscoveryDocs＆＃39;

0 个答案: