无法使用 Gradle 分发获取“EclipseProject”类型的模型

Question

在 Eclipse Neon（Buildship 1.0.18 / Gradle IDE 3.8.1）中导入 Gradle 项目时出现以下异常：

org.gradle.tooling.GradleConnectionException: Could not fetch model of type 'EclipseProject' using Gradle distribution 'https://services.gradle.org/distributions/gradle-3.0-bin.zip'.
    at org.gradle.tooling.internal.consumer.ExceptionTransformer.transform(ExceptionTransformer.java:55)
    at org.gradle.tooling.internal.consumer.ExceptionTransformer.transform(ExceptionTransformer.java:29)
    at org.gradle.tooling.internal.consumer.ResultHandlerAdapter.onFailure(ResultHandlerAdapter.java:41)
    at org.gradle.tooling.internal.consumer.async.DefaultAsyncConsumerActionExecutor$1$1.run(DefaultAsyncConsumerActionExecutor.java:57)
    at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
    at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
    at org.gradle.tooling.internal.consumer.BlockingResultHandler.getResult(BlockingResultHandler.java:46)
    at org.gradle.tooling.internal.consumer.DefaultModelBuilder.get(DefaultModelBuilder.java:51)
    at com.gradleware.tooling.toolingclient.internal.DefaultToolingClient.executeAndWait(DefaultToolingClient.java:106)
    at com.gradleware.tooling.toolingclient.internal.DefaultModelRequest.executeAndWait(DefaultModelRequest.java:79)
    at com.gradleware.tooling.toolingmodel.repository.internal.BaseModelRepository$1.get(BaseModelRepository.java:95)
    at com.gradleware.tooling.toolingmodel.repository.internal.BaseModelRepository.executeAndWait(BaseModelRepository.java:163)
    at com.gradleware.tooling.toolingmodel.repository.internal.BaseModelRepository.access$000(BaseModelRepository.java:41)
    at com.gradleware.tooling.toolingmodel.repository.internal.BaseModelRepository$2.call(BaseModelRepository.java:121)
    at com.google.common.cache.LocalCache$LocalManualCache$1.load(LocalCache.java:4724)
    at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3522)
    at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2315)
    at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2278)
    at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2193)
    at com.google.common.cache.LocalCache.get(LocalCache.java:3932)
    at com.google.common.cache.LocalCache$LocalManualCache.get(LocalCache.java:4721)
    at com.gradleware.tooling.toolingmodel.repository.internal.BaseModelRepository.getFromCache(BaseModelRepository.java:138)
    at com.gradleware.tooling.toolingmodel.repository.internal.BaseModelRepository.executeRequest(BaseModelRepository.java:117)
    at com.gradleware.tooling.toolingmodel.repository.internal.BaseModelRepository.executeRequest(BaseModelRepository.java:88)
    at com.gradleware.tooling.toolingmodel.repository.internal.DefaultSingleBuildModelRepository.fetchEclipseGradleBuild(DefaultSingleBuildModelRepository.java:185)
    at org.eclipse.buildship.core.workspace.internal.DefaultModelProvider.fetchEclipseGradleBuild(DefaultModelProvider.java:53)
    at org.eclipse.buildship.core.workspace.internal.SynchronizeGradleBuildsJob.synchronizeBuild(SynchronizeGradleBuildsJob.java:77)
    at org.eclipse.buildship.core.workspace.internal.SynchronizeGradleBuildsJob.runToolingApiJob(SynchronizeGradleBuildsJob.java:69)
    at org.eclipse.buildship.core.util.progress.ToolingApiJob$1.run(ToolingApiJob.java:73)
    at org.eclipse.buildship.core.util.progress.ToolingApiInvoker.invoke(ToolingApiInvoker.java:61)
    at org.eclipse.buildship.core.util.progress.ToolingApiJob.run(ToolingApiJob.java:70)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: java.lang.IllegalArgumentException
    at com.google.common.base.Preconditions.checkArgument(Preconditions.java:111)
    at org.gradle.plugins.ide.eclipse.model.Link.<init>(Link.java:36)
    at org.gradle.plugins.ide.eclipse.internal.LinkedResourcesCreator.links(LinkedResourcesCreator.java:42)
    at org.gradle.plugins.ide.eclipse.EclipsePlugin$2$2$1.call(EclipsePlugin.java:182)
    at org.gradle.plugins.ide.eclipse.EclipsePlugin$2$2$1.call(EclipsePlugin.java:179)
    at org.gradle.util.GUtil.uncheckedCall(GUtil.java:401)
    at org.gradle.api.internal.ConventionAwareHelper$2.getValue(ConventionAwareHelper.java:84)
    at org.gradle.api.internal.ConventionAwareHelper$MappedPropertyImpl.getValue(ConventionAwareHelper.java:133)
    at org.gradle.api.internal.ConventionAwareHelper.getConventionValue(ConventionAwareHelper.java:111)
    at org.gradle.plugins.ide.eclipse.model.EclipseProject_Decorated.getLinkedResources(Unknown Source)
    at org.gradle.plugins.ide.internal.tooling.EclipseModelBuilder.populate(EclipseModelBuilder.java:217)
    at org.gradle.plugins.ide.internal.tooling.EclipseModelBuilder.buildAll(EclipseModelBuilder.java:113)
    at org.gradle.plugins.ide.internal.tooling.EclipseModelBuilder.buildAll(EclipseModelBuilder.java:67)
    at org.gradle.tooling.internal.provider.runner.BuildModelActionRunner.createModelResult(BuildModelActionRunner.java:76)
    at org.gradle.tooling.internal.provider.runner.BuildModelActionRunner.run(BuildModelActionRunner.java:67)
    at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
    at org.gradle.tooling.internal.provider.runner.SubscribableBuildActionRunner.run(SubscribableBuildActionRunner.java:58)
    at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
    at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:43)
    at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:28)
    at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:82)
    at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:49)
    at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:59)
    at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:49)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)
    at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)
    at org.gradle.util.Swapper.swap(Swapper.java:38)
    at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.LogAndCheckHealth.execute(LogAndCheckHealth.java:55)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:60)
    at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:72)
    at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.HintGCAfterBuild.execute(HintGCAfterBuild.java:44)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
    at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:240)
    at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
    at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

我在这里发现了几乎相同的异常：Could not fetch model of type 'EclipseProject' using Gradle 但解决方案是使用最新的 Gradle 版本（目前是 3.0）

https://discuss.gradle.org/t/could-not-fetch-model-error-when-converting-project-to-gradle-using-buildship/19022 上报告了同样的情况，但到目前为止还没有答案。

上报资源可供下载：https://services.gradle.org/distributions/gradle-3.0-bin.zip

有人有解决这个问题的方法吗？谢谢。

Answer 1

问题来自您的项目可能使用的旧 gradle 包装器。

在您的 gradle 项目中，gradle->wrapper->gradle-wrapper.properties 进行适当的更改：

distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-2.14-bin.zip.

或者在你的机器上更新你的 gradle 之后重新创建你的 gradle 项目。

Answer 2

因为项目不尊重经典的Maven结构，所以我在build.gradle中使用了如下属性

sourceSets {
    main {
        java {
            srcDirs = ['/']
            exclude 'test/**'
        }
    }
}

正确的 srcDirs 应该是 ['./']

对于无法在Eclipse中导入Gradle项目的朋友，请检查是否存在这种配置错误。

Answer 3

如已接受的答案所示，此“无法获取类型的模型...”错误可能是由 build.gradle 文件中的语法错误引起的。如果是这样，则该错误与您正在运行的 Gradle 或 Eclipse 版本无关。见this question