[erlang-bugs] Bad argument when open_port with spawn_executable

Kenneth Lundin <>
Mon Jul 6 13:25:43 CEST 2009

The spawn_executable variant of erlang:open_port was introduced in R13B01.
The error you get indicates that you are running on an older version
of Erlang/OTP.
The bad argument refers to {spawn_exectable,_} which is not supported
before R13B01.

/Kenneth Erlang/OTP, Ericsson

On Mon, Jul 6, 2009 at 12:48 PM, Hynek Vychodil<> wrote:
> Hello,
> according to documentation I'm trying use spawn_executable argument to
> open_port/2. It seems there is a bug or I missed something?
> 13> open_port({spawn_executable, os:find_executable("perl")}, []).
> ** exception error: bad argument
>     in function  open_port/2
>        called as open_port({spawn_executable,"/usr/bin/perl"},[])
> I obtain same result for wide variety of PortSettings which seems not
> affecting it.
> Best regards
> --
> --Hynek (Pichi) Vychodil
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