Ivypot fails to resolve the correct version of a plugin

[lukecwik]

Ivypot resolves the following dependency:
org.sonatype.sisu/sisu-guice/3.1.3/sisu-guice-3.1.3-no_aop.jar

and then when attempting to build with the offline repo Gradle complains about this version missing:
org.sonatype.sisu/sisu-guice/3.1.0/sisu-guice-3.1.0-no_aop.jar

Code snapshot:
https://github.com/lukecwik/incubator-beam/tree/ivypot

Repro (after cloning the above repo):

./gradlew :sync:syncRemoteRepositories
./gradlew --offline

[gijsleussink]

When running the first Gradle command, I get these failed downloads. Do you perhaps have them in your mavenLocal repo?

::::::::::::::::::::::::::::::::::::::::::::::
::              FAILED DOWNLOADS            ::
:: ^ see resolution messages for details  ^ ::
::::::::::::::::::::::::::::::::::::::::::::::
:: org.eclipse.sisu#org.eclipse.sisu.plexus;0.0.0.M5!org.eclipse.sisu.plexus.eclipse-plugin
:: org.eclipse.sisu#org.eclipse.sisu.inject;0.0.0.M5!org.eclipse.sisu.inject.eclipse-plugin
::::::::::::::::::::::::::::::::::::::::::::::

[lukecwik]

When they are in my maven repo it gets passed the FAILED DOWNLOADS. After removing them from my local maven repo, I get the FAILED DOWNLOADS when attempting to perform syncRemoteRepositiories

[ysb33r]

Did you actually include the local ivy when running offline?