Unable to install/build

[kalemeow]

Hi, trying to install/build current version on an Elasticsearch node per the instructions, I receive an error from Elasticsearch plugin manager:

[root@xxxxx elasticsearch]# bin/plugin -i elasticsearch-equilibrium -url file:///home/kalemeow/elasticsearch-equilibrium-master.zip
-> Installing elasticsearch-equilibrium...
Trying file:/home/kalemeow/elasticsearch-equilibrium-master.zip...
Downloading .DONE
Plugin installation assumed to be site plugin, but contains source code, aborting installation...

I unzipped the package and tried to build it with mvn clean package, however this fails with a dependancy error:

Downloading: https://oss.sonatype.org/content/repositories/releases/com/sonian/elasticsearch-test-helper/0.19.0/elasticsearch-test-helper-0.19.0.pom
Downloading: http://repo1.maven.org/maven2/com/sonian/elasticsearch-test-helper/0.19.0/elasticsearch-test-helper-0.19.0.pom
[WARNING] The POM for com.sonian:elasticsearch-test-helper:jar:0.19.0 is missing, no dependency information available
<snip>
[ERROR] Failed to execute goal on project elasticsearch-equilibrium: Could not resolve dependencies for project com.sonian:elasticsearch-equilibrium:jar:0.90.1: Could not find artifact com.sonian:elasticsearch-test-helper:jar:0.19.0 in sonatype (https://oss.sonatype.org/content/repositories/releases) -> [Help 1]

How can I build/install this plugin?