From a bug reported on Slack by @dams while testing riak-2.2.5.rc2.

The repl data directory is specified in the advanced config file, there is no sane default it seems.
it's not a big deal, but you'd expect it to start fine, even without an advanced config file.

Upon fresh install of Riak 2.2.5 - Riak throws the following error :

"riak_repl couldn't create log dir \"data/riak_repl/logs\": enoent\n"

This path needs to be set in the advanced.config file.

Two possible solutions :

• The directory could be created using cuttlefish - it’s under the default Riak data directory.
• The directory could be created during the package installation phasedirectory anyway