[erlang-questions] with Erlang R21 rebar3 build fails

[John Högberg]

Hi,

This is caused by fixing a bug in OTP 21; file:write_file_info and
friends used to report success on owner/group changes regardless of
whether it worked or not.

We marked this as an incompatibility in the release notes under OTP-
15118.

Regards,
John Högberg

On ons, 2018-06-20 at 19:21 -0400, Fred Hebert wrote:
> On 06/20, Mark Geib wrote:
> > 
> > and rebar3.crashdump is:
> > 
> > geibs-MacBook-Pro:json2splunk geib$ cat rebar3.crashdump
> > Error: {badmatch,{error,eperm}}
> > [{rlx_prv_overlay,write_template,3,
> >                  [{file,"/home/tristan/Devel/rebar3/_build/default/
> > lib/relx/src/rlx_prv_overlay.erl"},
> >                   {line,498}]},
> > ...
> > 
> > Now switching back to erlang R20 I get a successful build
> > 
> > 
> > I assume since rebar3 is the same exec, that this is a potential
> > issue with R21.
> > Any ideas.???
> > 
> See http://erlang.org/pipermail/erlang-questions/2018-June/095614.htm
> l
> 
> OTP-21.0 sees the entire file drivers rewritten. The bug you have
> seems 
> to have been reported to the OTP team during OTP-21-rc2.
> 
> I don't know exactly what happened between OTP-21-rc2 and OTP-21.0,
> and 
> if you'd need to run with a rebar3 built specifically on OTP-21.0
> for 
> things to work fine.
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