Oh, did you convert the file format? You have to either do that to convert the "::" delimiter to a ",", or else modify the code to use a special parser for that input.
On Wed, Feb 23, 2011 at 1:48 PM, Cristian Lai <[email protected]> wrote: > Yes of course. > My run was with the '-e'. > > The input file is the one recommended at > https://cwiki.apache.org/confluence/display/MAHOUT/RecommendationExamples > > The downloaded file belong to the archive provided by Grouplens > http://www.grouplens.org/node/73 > > Any idea? > Thaks in advance. > > cristian > > Please let me include the complete error trace: > ù[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.2:java > (default-cli) on project mahout-examples: An exception occured while > executing the Java class. null: InvocationTargetException: Did not find a > delimiter in first line -> [Help 1] > org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute > goal org.codehaus.mojo:exec-maven-plugin:1.2:java (default-cli) on project > mahout-examples: An exception occured while executing the Java class. null > 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:319) > at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156) > at org.apache.maven.cli.MavenCli.execute(MavenCli.java:534) > 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: An exception > occured while executing the Java class. null > at org.codehaus.mojo.exec.ExecJavaMojo.execute(ExecJavaMojo.java:346) > at > org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:107) > at > org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209) > ... 19 more > Caused by: java.lang.reflect.InvocationTargetException > 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.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:291) > at java.lang.Thread.run(Thread.java:680) > Caused by: java.lang.IllegalArgumentException: Did not find a delimiter in > first line > at > org.apache.mahout.cf.taste.impl.model.file.FileDataModel.determineDelimiter(FileDataModel.java:318) > at > org.apache.mahout.cf.taste.impl.model.file.FileDataModel.<init>(FileDataModel.java:179) > at > org.apache.mahout.cf.taste.impl.model.file.FileDataModel.<init>(FileDataModel.java:146) > at > org.apache.mahout.cf.taste.example.bookcrossing.BookCrossingDataModel.<init>(BookCrossingDataModel.java:53) > at > org.apache.mahout.cf.taste.example.bookcrossing.BookCrossingRecommenderEvaluatorRunner.main(BookCrossingRecommenderEvaluatorRunner.java:43) > ... 6 more > [ERROR] > [ERROR] Re-run Maven using the -X switch to enable full debug logging. > [ERROR] > [ERROR] For more information about the errors and possible solutions, please > read the following articles: > [ERROR] [Help 1] > http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException > > > Il 2/23/11 2:10 PM, Sean Owen ha scritto: >> >> It looks like the input is malformed. You'll have to look at what it's >> reading and what it's seeing to understand why the input isn't correct >> there, but it works for me. >> >> It's possible this is not the real error, so you might run with "-e" >> to see more about the error. >> >> On Wed, Feb 23, 2011 at 11:15 AM, Cristian Lai<[email protected]> wrote: >>> >>> Dear All, >>> i'm trying to run the example by the command >>> >>> $MAVEN_HOME/bin/mvn -f pom.xml -q exec:java >>> >>> -Dexec.mainClass="org.apache.mahout.cf.taste.example.bookcrossing.BookCrossingRecommenderEvaluatorRunner" >>> -Dexec.args="-i tmp/million-ml-data/ratings.dat" >>> >>> My environment has: >>> Maven version is 3.0.2 >>> Java version 1.6.0_22 >>> >>> The error i get is the following: >>> >>> Feb 23, 2011 11:43:15 AM org.slf4j.impl.JCLLoggerAdapter info >>> INFO: Creating FileDataModel for file >>> /var/folders/qN/qNNZz6mEGCm0xe6CxuiceE+++TI/-Tmp-/taste.bookcrossing.txt >>> [ERROR] Failed to execute goal >>> org.codehaus.mojo:exec-maven-plugin:1.2:java >>> (default-cli) on project mahout-examples: An exception occured while >>> executing the Java class. null: InvocationTargetException: Did not find a >>> delimiter in first line -> [Help 1] >>> org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute >>> goal org.codehaus.mojo:exec-maven-plugin:1.2:java (default-cli) on >>> project >>> mahout-examples: An exception occured while executing the Java class. >>> null >>> at >>> >>> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:217) >>> >>> Anybody can help me? >>> >>> Best regards. >>> >>> cristian >>> > >
