Eclipse batch launch

Before I venture into command line launching, perhaps it's best to have a working batch implementation through Eclipse.
I'm trying to get the Boids model running in batch mode (though I am not particular to this model, any model would do).
I have made a params.xml for the parameter file and all it currently contains is:

<?xml version="1.0"?>

<sweep runs="4">

</sweep>
 
When I try to run the model, I obtain the following error:

java.lang.RuntimeException: Couldn't find classes using supplied class loader: boids.BoidsAgent on path: C:\RepastS\workspace\Boids\bin

at repast.simphony.scenario.ScenarioLoader.getAgentClasses(ScenarioLoader.java:251)
 
The run Main class is set to:
 repast.simphony.batch.BatchMain
 
The arguments are:
-params ${file_prompt:the Batch Run Parameters File Name:params.xml}
"${workspace_loc}/Boids/boids.rs"
 
How can I implement a simple batch run? Is there a better model to try this on? Can anyone give me exactly how they have done this? Thanks, -Brett

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