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k6.amruta | 28 Jul 2012 02:05
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Exception in thread "main" java.lang.NoClassDefFoundError: classpath

I am trying to run Wikipedia Bayes Example from
https://cwiki.apache.org/confluence/...+Bayes+Example

When I ran the following command : $MAHOUT_HOME/bin/mahout
wikipediaXMLSplitter -d
$MAHOUT_HOME/examples/temp/enwiki-latest-pages-articles10.xml -o
wikipedia/chunks -c 64

I am getting this error:

Exception in thread "main" java.lang.NoClassDefFoundError: classpath
Caused by: java.lang.ClassNotFoundException: classpath
        at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:336)
Running on hadoop, using /x/home/hadoop_adm/opt/hadoop/bin/hadoop and
HADOOP_CONF_DIR=
MAHOUT-JOB: /x/home/user/mahout-distribution-0.7/mahout-examples-0.7-job.jar
12/07/27 16:28:02 WARN driver.MahoutDriver: Unable to add class:
wikipediaXMLSplitter
12/07/27 16:28:02 WARN driver.MahoutDriver: No wikipediaXMLSplitter.props
found on classpath, will use command-line arguments only
Unknown program 'wikipediaXMLSplitter' chosen.
Valid program names are:
  arff.vector: : Generate Vectors from an ARFF file or directory
  baumwelch: : Baum-Welch algorithm for unsupervised HMM training
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in.abdul | 28 Jul 2012 17:02
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Re: Exception in thread "main" java.lang.NoClassDefFoundError: classpath

Hi ,
  The way you have installed mahout may be wrong .. can I know whether out
of box in mahout is working fine .
Syed Abdul kather
send from Samsung S3
On Jul 28, 2012 5:35 AM, "k6.amruta [via Lucene]" <
ml-node+s472066n3997816h22 <at> n3.nabble.com> wrote:

> I am trying to run Wikipedia Bayes Example from
> https://cwiki.apache.org/confluence/...+Bayes+Example
>
> When I ran the following command : $MAHOUT_HOME/bin/mahout
> wikipediaXMLSplitter -d
> $MAHOUT_HOME/examples/temp/enwiki-latest-pages-articles10.xml -o
> wikipedia/chunks -c 64
>
> I am getting this error:
>
> Exception in thread "main" java.lang.NoClassDefFoundError: classpath
> Caused by: java.lang.ClassNotFoundException: classpath
>         at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
>         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
>         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:336)
> Running on hadoop, using /x/home/hadoop_adm/opt/hadoop/bin/hadoop and
> HADOOP_CONF_DIR=
> MAHOUT-JOB:
(Continue reading)

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in.abdul | 28 Jul 2012 17:05
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Re: Exception in thread "main" java.lang.NoClassDefFoundError: classpath

And can also you check that in target folder contains  .class file
generated or not .

Syed Abdul kather
send from Samsung S3
On Jul 28, 2012 8:32 PM, "syed kather" <in.abdul <at> gmail.com> wrote:

>
> Hi ,
>   The way you have installed mahout may be wrong .. can I know whether out
> of box in mahout is working fine .
> Syed Abdul kather
> send from Samsung S3
> On Jul 28, 2012 5:35 AM, "k6.amruta [via Lucene]" <
> ml-node+s472066n3997816h22 <at> n3.nabble.com> wrote:
>
>> I am trying to run Wikipedia Bayes Example from
>> https://cwiki.apache.org/confluence/...+Bayes+Example
>>
>> When I ran the following command : $MAHOUT_HOME/bin/mahout
>> wikipediaXMLSplitter -d
>> $MAHOUT_HOME/examples/temp/enwiki-latest-pages-articles10.xml -o
>> wikipedia/chunks -c 64
>>
>> I am getting this error:
>>
>> Exception in thread "main" java.lang.NoClassDefFoundError: classpath
>> Caused by: java.lang.ClassNotFoundException: classpath
>>         at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
>>         at java.security.AccessController.doPrivileged(Native Method)
(Continue reading)

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Amruta Mahajan | 5 Aug 2012 23:06
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Re: Exception in thread "main" java.lang.NoClassDefFoundError: classpath

Thanks Abdul for your reply!
mahout script was executing some command classpath, the output of which is
stored in the HADOOP_BINARY_CLASSPATH variable. But I found that this
variable is not being used anywhere else so I ignored the error. I was able
to run the example later on.

Regards,
Amruta

On Sat, Jul 28, 2012 at 8:05 AM, in.abdul <in.abdul <at> gmail.com> wrote:

> And can also you check that in target folder contains  .class file
> generated or not .
>
> Syed Abdul kather
> send from Samsung S3
> On Jul 28, 2012 8:32 PM, "syed kather" <in.abdul <at> gmail.com> wrote:
>
> >
> > Hi ,
> >   The way you have installed mahout may be wrong .. can I know whether
> out
> > of box in mahout is working fine .
> > Syed Abdul kather
> > send from Samsung S3
> > On Jul 28, 2012 5:35 AM, "k6.amruta [via Lucene]" <
> > ml-node+s472066n3997816h22 <at> n3.nabble.com> wrote:
> >
> >> I am trying to run Wikipedia Bayes Example from
> >> https://cwiki.apache.org/confluence/...+Bayes+Example
(Continue reading)

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Gmane