Exec maven plugin LensKit:未能执行目标org.codehaus.mojo:exec maven插件：1.2.1:exec（默认cli）_Exec Maven Plugin_Lenskit

Exec maven plugin LensKit:未能执行目标org.codehaus.mojo:exec maven插件：1.2.1:exec（默认cli）

Exec maven plugin LensKit:未能执行目标org.codehaus.mojo:exec maven插件：1.2.1:exec（默认cli）,exec-maven-plugin,lenskit,Exec Maven Plugin,Lenskit,我正在使用LensKit recommender在Netbeans中构建一个maven项目，但是当我尝试运行groovy文件时，我得到以下错误： [exec:exec] Exception in thread "main" groovy.lang.MissingPropertyException: No such property: config for class: eval.eval at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.u

我正在使用LensKit recommender在Netbeans中构建一个maven项目，但是当我尝试运行groovy文件时，我得到以下错误：

[exec:exec]
Exception in thread "main" groovy.lang.MissingPropertyException: No such property: config for class: eval.eval
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap(ScriptBytecodeAdapter.java:50)
at org.codehaus.groovy.runtime.callsite.PogoGetPropertySite.getProperty(PogoGetPropertySite.java:49)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGroovyObjectGetProperty(AbstractCallSite.java:231)
at eval.eval.run(eval.groovy:23)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1076)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:906)
at org.codehaus.groovy.runtime.InvokerHelper.invokePogoMethod(InvokerHelper.java:848)
at org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:831)
at org.codehaus.groovy.runtime.InvokerHelper.runScript(InvokerHelper.java:407)
at org.codehaus.groovy.runtime.InvokerHelper$runScript.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:120)
at eval.eval.main(eval.groovy)
------------------------------------------------------------------------
BUILD FAILURE
------------------------------------------------------------------------
Total time: 4.681s
Finished at: Tue Jan 07 13:30:37 EET 2014
Final Memory: 18M/179M
------------------------------------------------------------------------
Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.2.1:exec (default-cli) on project CF_Lenskit: Command execution failed. Process exited with an error: 1 (Exit value: 1) -> [Help 1]
To see the full stack trace of the errors, re-run Maven with the -e switch.
Re-run Maven using the -X switch to enable full debug logging.
For more information about the errors and possible solutions, please read the following articles:
[Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

mypom.xml包含以下内容

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>gr.hua.dit</groupId>
  <artifactId>CF_Lenskit</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>jar</packaging>
  <properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<lenskit.eval.scriptDir>${basedir}/src/eval/</lenskit.eval.scriptDir>
<lenskit.eval.dataDir>${basedir}/target/data/</lenskit.eval.dataDir>
<lenskit.eval.analysisDir>${basedir}/target/analysis/</lenskit.eval.analysisDir>
<lenskit.eval.publishDir>${basedir}/src/paper/</lenskit.eval.publishDir>

<lenskit.version>2.0.5</lenskit.version>
<rscript.executable>Rscript</rscript.executable>
<!-- <grouplens.mldata.acknowledge>no</grouplens.mldata.acknowledge> -->
</properties>
<dependencies>
 <dependency>
  <groupId>org.grouplens.lenskit</groupId>
  <artifactId>lenskit-core</artifactId>
  <version>${lenskit.version}</version>
 </dependency>
 <dependency>
  <groupId>org.grouplens.lenskit</groupId>
  <artifactId>lenskit-knn</artifactId>
  <version>${lenskit.version}</version>
 </dependency>
 <dependency>
  <groupId>junit</groupId>
  <artifactId>junit</artifactId>
  <version>4.11</version>
  <scope>test</scope>
 </dependency>
 <dependency>
  <groupId>org.hamcrest</groupId>
  <artifactId>hamcrest-library</artifactId>
  <version>1.3</version>
  <scope>test</scope>
 </dependency>
 <dependency>
  <artifactId>groovy-all</artifactId>
  <groupId>org.codehaus.groovy</groupId>
  <version>2.0.5</version>
 </dependency>
 <dependency>
  <groupId>org.grouplens.lenskit</groupId>
  <artifactId>lenskit-eval-maven-plugin</artifactId>
  <version>2.0.5</version>
 </dependency>
 <dependency>
  <groupId>org.grouplens.lenskit</groupId>
  <artifactId>lenskit-eval</artifactId>
  <version>2.0.5</version>
 </dependency>
 <dependency>
  <groupId>org.codehaus.mojo</groupId>
  <artifactId>exec-maven-plugin</artifactId>
  <version>1.2.1</version>
 </dependency>  
 </dependencies>



<build>
 <plugins>
  <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>2.0.2</version>
     <configuration>
      <source>1.7</source>
      <target>1.7</target>
     </configuration>
  </plugin>
  <plugin>
    <artifactId>lenskit-eval-maven-plugin</artifactId>
    <groupId>org.grouplens.lenskit</groupId>
    <version>${lenskit.version}</version>
    <extensions>true</extensions>
     <configuration>
      <script>${lenskit.eval.scriptDir}/eval.groovy</script>
      <analysisScript>${lenskit.eval.scriptDir}/chart.R</analysisScript>
       <targets>
        <target>draw</target>
        <target>analyze</target>
      </targets>
    </configuration>
  </plugin>
  <plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>latex-maven-plugin</artifactId>
    <version>1.1</version>
    <executions>
      <execution>
        <id>do-latex</id>
        <phase>lenskit-publish</phase>
        <goals>
          <goal>latex</goal>
        </goals>
      </execution>
    </executions>
  </plugin>
  <plugin>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>2.3.2</version>
    <dependencies>
      <dependency>
        <groupId>org.codehaus.groovy</groupId>
        <artifactId>groovy-eclipse-compiler</artifactId>
        <version>2.6.0-01</version>
      </dependency>
    </dependencies>
    <configuration>
      <compilerId>groovy-eclipse-compiler</compilerId>
    </configuration>
  </plugin>
  <plugin>
    <artifactId>groovy-eclipse-compiler</artifactId>
    <groupId>org.codehaus.groovy</groupId>
    <version>2.6.0-01</version>
    <extensions>true</extensions>
  </plugin>
  </plugins>
  </build>
</project>

看起来NetBeans正在使用Codehaus

exec-maven插件

作为groovy脚本直接运行LensKit

eval.groovy

文件。LensKit eval脚本不能作为Groovy脚本直接运行，它们必须使用LensKit evaluator运行

有两种方法可以做到这一点：

使用evaluator命令行界面，可以使用二进制发行版中的
```
lenskit eval
```
脚本，也可以运行NetBeans中的
```
org.grouplens.lenskit.eval.cli.EvalCLI
```
类
使用lenskit eval maven插件。您的POM已设置为执行此操作；对于这个选项，您要做的是运行
```
lenskit analyze
```
Maven目标（NetBeans应该有一种运行任意Maven目标/阶段的方法）

在config.xml上添加R的路径，例如

我的代码格式似乎有错误，但我找不到原因，因此如果有版主可以编辑，那就太好了，谢谢。你能发布堆栈跟踪（使用

mvn-e重新运行）

）？谢谢你，Michael，我如何从netbeans查看堆栈跟踪？我试图在我的项目的运行选项中设置mvn-e，但是输出没有任何变化。好的，我已经更新了我的第一篇文章！谢谢。所以，如果我做对了，我必须创建一个自定义目标，运行

lenskit analyze

目标来使用第二个选项？我很困惑，因为我的项目中没有定义目标。@omen lenskit eval maven插件将

lenskit Analysis

阶段定义为lenskit生命周期的一部分，默认情况下在

lenskit eval

阶段运行lenskit evaluator（它位于

lenskit analyze

之前。因此，您只需运行

mvn lenskit analyze

，而不是例如

mvn install

；NetBeans的Maven runner应该有一种方法来指定要运行的目标/阶段。该阶段已经由您使用lenskit Maven插件的事实定义了。@Michael Ekstrand谢谢！明白了。M我可以问其他问题而不是创建一个新线程吗？我在

IntelliJ

运行

lenskit analyze

阶段测试了evaluator，但我得到了一个错误

错误：在-source 1.6

中不支持try with resources引用我在项目中创建的两个java文件。令人困惑的是我设置了

>项目结构设置中的jdk

版本到

1.7

和

项目语言级别到7.0
。我做错了什么吗？@Michael Ekstrand忽略了我之前的评论，不知怎的，org.apache.maven.plugins
的源和目标配置仍然设置为1.6
构建失败，出现错误：未能执行目标组织.grouplens.lenskit:lenskit eval maven插件：2.0.5：在项目上运行eval（默认运行eval）：执行目标组织的默认运行eval.grouplens.lenskit:lenskit eval maven插件：2.0.5：运行eval失败：java.lang.RuntimeException:grouplens数据许可证未确认->[帮助1]。请原谅我问了一些与第一篇文章不相关的问题，但你最好是直接了解！@Omen，请参阅。LensKit 2.1（目前正在开发中）不再需要这一点。此外，有关配置设置的更多详细问题，可以在邮件列表中询问（请参阅）
    org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.2.1:exec (default-cli) on project CF_Lenskit: Command execution failed.
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:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
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: Command execution failed.
at org.codehaus.mojo.exec.ExecMojo.execute(ExecMojo.java:362)
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.commons.exec.ExecuteException: Process exited with an error: 1 (Exit value: 1)
at org.apache.commons.exec.DefaultExecutor.executeInternal(DefaultExecutor.java:377)
at org.apache.commons.exec.DefaultExecutor.execute(DefaultExecutor.java:160)
at org.codehaus.mojo.exec.ExecMojo.executeCommandLine(ExecMojo.java:610)
at org.codehaus.mojo.exec.ExecMojo.execute(ExecMojo.java:352)
... 21 more