Hi all, I now merged and published to maven central otopi-1.5.0-rc1. It includes an incompatible change to the machine dialog protocol. If you have an engine machine with the new otopi and your engine uses an older one, host-deploy will fail with the message: Invalid data recieved during bootstrap To fix, you should rebuild your engine with the new otopi. To get it, either use the one in maven central, or install to your local maven cache by cloning/checking out otopi master branch and: autoreconf -ivf ./configure --enable-java-sdk --with-maven make A patch for the engine to require the newer version [1] will be merged soon. [1] https://gerrit.ovirt.org/57472 Best, -- Didi