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Android数据绑定生成错误:[数据绑定插件]:无法设置数据绑定



我正在玩谷歌的Android数据绑定库，我曾经使用过它。现在，"某些东西"似乎发生了变化，这给数据绑定库带来了问题。我被一个非常普通的错误难住了，一个[data binding plugin]: failed to setup data binding。

AFAIK，当数据绑定库的某个布局文件出现问题（比如绑定中的拼写错误）时，就会引发此错误。问题是，如何找出是哪个布局文件导致了问题？有人对如何找出问题所在有什么建议吗？除了一次注释XML布局代码和Java代码文件之外，我有点不知所措，不知道如何有效地解决这些类型的问题。

我得到的唯一线索是Gradle控制台中的这个相当非描述性的堆栈跟踪：

[data binding plugin]: failed to setup data binding
java.lang.NoSuchMethodError: android.databinding.tool.LayoutXmlProcessor.<init>(Ljava/lang/String;Ljava/util/List;Landroid/databinding/tool/writer/JavaFileWriter;IZ)V
    at android.databinding.tool.DataBinderPlugin.attachXmlProcessor(DataBinderPlugin.java:274)
    at android.databinding.tool.DataBinderPlugin.createXmlProcessorForApp(DataBinderPlugin.java:231)
    at android.databinding.tool.DataBinderPlugin.createXmlProcessor(DataBinderPlugin.java:200)
    at android.databinding.tool.DataBinderPlugin.access$200(DataBinderPlugin.java:65)
    at android.databinding.tool.DataBinderPlugin$1.execute(DataBinderPlugin.java:156)
    at android.databinding.tool.DataBinderPlugin$1.execute(DataBinderPlugin.java:152)
    at org.gradle.internal.event.BroadcastDispatch$ActionInvocationHandler.dispatch(BroadcastDispatch.java:93)
    at org.gradle.internal.event.BroadcastDispatch$ActionInvocationHandler.dispatch(BroadcastDispatch.java:82)
    at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:44)
    at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:79)
    at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:30)
    at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
    at com.sun.proxy.$Proxy10.afterEvaluate(Unknown Source)
    at org.gradle.configuration.project.LifecycleProjectEvaluator.notifyAfterEvaluate(LifecycleProjectEvaluator.java:67)
    at org.gradle.configuration.project.LifecycleProjectEvaluator.evaluate(LifecycleProjectEvaluator.java:61)
    at org.gradle.api.internal.project.AbstractProject.evaluate(AbstractProject.java:499)
    at org.gradle.api.internal.project.AbstractProject.evaluate(AbstractProject.java:86)
    at org.gradle.execution.TaskPathProjectEvaluator.configure(TaskPathProjectEvaluator.java:35)
    at org.gradle.execution.TaskSelector.getSelection(TaskSelector.java:82)
    at org.gradle.execution.TaskSelector.getSelection(TaskSelector.java:75)
    at org.gradle.execution.commandline.CommandLineTaskParser.parseTasks(CommandLineTaskParser.java:42)
    at org.gradle.execution.TaskNameResolvingBuildConfigurationAction.configure(TaskNameResolvingBuildConfigurationAction.java:44)
    at org.gradle.execution.DefaultBuildConfigurationActionExecuter.configure(DefaultBuildConfigurationActionExecuter.java:48)
    at org.gradle.execution.DefaultBuildConfigurationActionExecuter.access$000(DefaultBuildConfigurationActionExecuter.java:25)
    at org.gradle.execution.DefaultBuildConfigurationActionExecuter$1.proceed(DefaultBuildConfigurationActionExecuter.java:54)
    at org.gradle.execution.DefaultTasksBuildExecutionAction.configure(DefaultTasksBuildExecutionAction.java:44)
    at org.gradle.execution.DefaultBuildConfigurationActionExecuter.configure(DefaultBuildConfigurationActionExecuter.java:48)
    at org.gradle.execution.DefaultBuildConfigurationActionExecuter.access$000(DefaultBuildConfigurationActionExecuter.java:25)
    at org.gradle.execution.DefaultBuildConfigurationActionExecuter$1.proceed(DefaultBuildConfigurationActionExecuter.java:54)
    at org.gradle.execution.ExcludedTaskFilteringBuildConfigurationAction.configure(ExcludedTaskFilteringBuildConfigurationAction.java:47)
    at org.gradle.execution.DefaultBuildConfigurationActionExecuter.configure(DefaultBuildConfigurationActionExecuter.java:48)
    at org.gradle.execution.DefaultBuildConfigurationActionExecuter.select(DefaultBuildConfigurationActionExecuter.java:36)
    at org.gradle.initialization.DefaultGradleLauncher$3.run(DefaultGradleLauncher.java:143)
    at org.gradle.internal.Factories$1.create(Factories.java:22)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:90)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:52)
    at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:140)
    at org.gradle.initialization.DefaultGradleLauncher.access$200(DefaultGradleLauncher.java:32)
    at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:99)
    at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:93)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:90)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:62)
    at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:93)
    at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:82)
    at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:94)
    at org.gradle.tooling.internal.provider.runner.BuildModelActionRunner.run(BuildModelActionRunner.java:46)
    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:77)
    at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:47)
    at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:52)
    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:37)
    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.health.DaemonHealthTracker.execute(DaemonHealthTracker.java:47)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:66)
    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:71)
    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.health.HintGCAfterBuild.execute(HintGCAfterBuild.java:41)
    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$1.run(DaemonStateCoordinator.java:246)
    at org.gradle.internal.concurrent.ExecutorPolicy$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)

使用新版本2.0.0和Android Studio 2.0我只更改了我的应用程序的渐变文件，添加了这个-

android {
    ...
    dataBinding{
        enabled = true
    }
}

它就像一个符咒。不需要在项目的渐变文件中添加classpath'com.android.databinding:dataBinder:1.+'，也不需要在应用程序的渐变文件添加apply plugin: 'com.android.databinding'。

数据绑定不再是测试版，因此删除

apply plugin: 'com.android.databinding'

来自build.gradle.

我们不需要添加

classpath 'com.android.databinding:dataBinder:1.+'

两个

apply plugin: 'com.android.databinding'

仅添加

android {
    ...
    dataBinding {
        enabled = true
    }
}

如果您使用的是gradle 2.0或更高版本。例如：

classpath 'com.android.tools.build:gradle:2.3.0'

我基本同意@NeoTran的回答，我们：

报价：

我们不需要添加

classpath com.android.databinding:dataBinder:1.+'

两个

应用插件："com.android.databinding"

但我们需要

android {
    ...
    dataBinding {
        enabled = true
    }
}

NDK的OR

model {
    ...
    android.dataBinding
    {
        enabled = true
    }
}

如果您使用的是gradle 2.0或更高版本。

在globalbuild.gradle中，您需要添加例如：

classpath 'com.android.tools.build:gradle:2.3.3'
classpath 'com.android.tools.build:gradle-experimental:0.9.3' // <-- for NDK

您使用的是哪种版本的Gradle？我想我读到某个版本中有一个bug。尝试使用com.android.tools.build:gradle:1.5.0-beta1

别忘了

android {
    dataBinding {
        enabled = true
    }

在你的gradle脚本中。这为我解决了问题。

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