can't compile on cenos6.4

[markray]

sudo sh start-dev.sh
==> cowlib (compile)
ERROR: OTP release R14B04 does not match required regex R17
make: *** [app] Error 1
Erlang R14B04 (erts-5.8.5) [source] [64-bit] [smp:8:8] [rq:8] [async-threads:0] [kernel-poll:false]

is this an issue? how to fix it?

[linearregression]

I looks like you are using R17 ..

Try changing rebar.config line:
{require_otp_vsn, "R14"}. to
{require_otp_vsn, "R17"}.