lenskit maven build 'failed to execute goal' error message

Question

I would like to be able to use LensKit - from within Eclipse (Kepler) - to explore its basic capabilities.

When building a maven project, however, I am getting the following error message:

 Failed to execute goal org.grouplens.lenskit:lenskit-eval-maven-plugin:2.0-M2:run-eval (default-run-eval) on project lenskit-demo: Execution default-run-eval of goal org.grouplens.lenskit:lenskit-eval-maven-plugin:2.0-M2:run-eval failed: Execute failed: java.io.IOException: Cannot run program "Rscript": CreateProcess error=2, The system cannot find the file specified -> [Help 1]

Another part of the error message directs to the following site, which is not very informative:

http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutionException

Can anyone help with this? Is this something that's easily fixed?

Answer 1

lenskit-demo is really out of date (I'm not even sure where it is).

Better starting points:

• http://lenskit.org/documentation/basics/getting-started/
• http://lenskit.org/documentation/evaluator/quickstart/