[rules-users] Error trying to build Drools 5.0 from source

[Mulcahy, Lawrence]

Anyone know what this means?  I downloaded drools-5.0-src.zip
from http://www.jboss.org/drools/downloads.html.  I extracted it,
cded into the top directory and after perusing the README typed

$ mvn -Declipse -Ddocumentation clean install

The output:

[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] The projects in the reactor contain a cyclic reference: Edge between 'Vertex{label='org.drools:docbook-xsl-drools'}' and 'Vertex{label='org.drools:docbook-style-drools'}' introduces to cycle in the graph org.drools:docbook-style-drools --> org.drools:docbook-xsl-drools --> org.drools:docbook-style-drools
[INFO] ------------------------------------------------------------------------
[INFO] For more information, run Maven with the -e switch
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4 seconds
[INFO] Finished at: Wed Oct 07 10:33:21 MDT 2009
[INFO] Final Memory: 10M/80M
[INFO] ------------------------------------------------------------------------

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