I think you can try with this repository
https://github.com/AEnterprise/Buildcraft-Additions/blob/multiblockRefinery/build.gradle#L89-L92

Thanks I'll try it. It works if I specify 6.3.3:dev. Last time I tried and it didn't work, it was because asie didn't update the maven.

Nope it still gives a 403 forbidden error on the maven. Also BC Additions was using BC6.3.4, which works just fine.
from gradle.properties on that file tree
version.buildcraft=6.3.4

We cannot control the Maven. I don't even know where the Jenkins is hosted!

6.4.0 was not uploaded intentionally, as it was a beta release and the API was not finalized - depending on it would be a very bad idea.

Can we see your build.gradle? Also, we need more logs, that is not enought so restart it with --debug and send your logs.

build.gradle
http://pastebin.com/HZvtUizR

I'm very familiar with gradle and forge, if you are saying it works for you for BC6.4.0:dev, then I'll close this now and figure it out.

Ah ok thanks. I was wondering. If it was intentional, then all is good.

@da3dsoul we did update BCA to use BC 6.4.0 by using ivy for now, we know the api will change in the future but we did this to be able to test with the latest BC and make sure it's compatible, also 2.1.x is a dev branch will be a while until anything from that branch is released

BCA-Team/Buildcraft-Additions@4a26f56