Java org.apache.maven.plugin.MojoExecutionException:协议失败

我在使用maven从源代码中编译hadoop时遇到了一些问题。下面是错误，有人能帮我吗？谢谢

[ERROR] Failed to execute goal org.apache.hadoop:hadoop-maven-plugins:3.0.0-SNAPSHOT:protoc (compile-protoc) on project hadoop-c
 [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.hadoop:hadoop-maven-plugins:3.0.0-SNAP
plugin.MojoExecutionException: protoc failure
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:217)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
Caused by: org.apache.maven.plugin.MojoExecutionException: org.apache.maven.plugin.MojoExecutionException: protoc failure
        at org.apache.hadoop.maven.plugin.protoc.ProtocMojo.execute(ProtocMojo.java:81)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
        ... 19 more
**Caused by: org.apache.maven.plugin.MojoExecutionException: protoc failure**
        at org.apache.hadoop.maven.plugin.protoc.ProtocMojo.execute(ProtocMojo.java:78)
        ... 21 more
[ERROR]
[ERROR]

上的说明解释了构建hadoop的一些不太明显的方面——包括这一方面这里的主要问题是hadoop的纱线框架需要协议缓冲区，而您很可能没有安装它们。

看起来问题可能是您没有正确解释错误，因此--

如何隔离生成错误

任何失败的mojo都应该与一个类相关联

在这种情况下，失败的魔咒在这里：

看看代码，很明显，这个Mojo需要“protoc”程序才能运行

解决方案

要构建hadoop，需要协议缓冲区。这可以从源代码安装到*NIX机器上，方法是运行以下命令从googlecode（取自）获取代码

---

对不起，我是新来的。我试图将其转换为代码格式，但失败了。为什么需要从源代码编译Hadoop？更新：trunk现在需要protobuf 2.5:

wgethttp://protobuf.googlecode.com/files/protobuf-2.5.0.tar.gz

如何在windows上编译此文件？@Sambit Tripathy:要在windows上获取此文件，请转到并获取windows二进制文件。您只需在环境路径中添加protoc.exe的路径，它就会被安装！对于我从ApacheNutch站点获得的HadoopforEclipse安装包，需要2.5.0版本，所以只需获取该版本，就可以了！

wget http://protobuf.googlecode.com/files/protobuf-2.4.1.tar.gz
tar xzf protobuf-2.4.1.tar.gz
cd protobuf-2.4.1
./configure
make
sudo make install
sudo ldconfig