Error downloading dependencies for io.fabric8.fabric8-maven-plugin

Issue

• I'm trying to apply Christian's blog post on building profiles in my build using the fabric8-maven-plugin and am experiencing errors:

[ERROR] Failed to execute goal io.fabric8:fabric8-maven-plugin:1.2.0.redhat-133:zip (xyz-zip) on project parent: Execution xyz-zip of goal io.fabric8:fabric8-maven-plugin:1.2.0.redhat-133:zip failed: Plugin io.fabric8:fabric8-maven-plugin:1.2.0.redhat-133 or one of its dependencies
 could not be resolved: Failed to collect dependencies at io.fabric8:fabric8-maven-plugin:jar:1.2.0.redhat-133 -> org.apache.karaf.deployer:org.apache.karaf.dep
loyer.blueprint:jar:2.4.0.redhat-620133: Failed to read artifact descriptor for org.apache.karaf.deployer:org.apache.karaf.deployer.blueprint:jar:2.4.0.redhat-6
20133: Could not find artifact org.apache.karaf.deployer:deployer:pom:2.4.0.redhat-620133 in central (http://repo1.maven.org/maven2) -> [Help 1]

I actually manually downloaded the org.apache.karaf.deployer.bleprint.jar and .pom into my maven repository as well as other dependencies it claimed it couldn't find, but ultimately mvn install -U on my project failed as above. What's wrong?