[MacPorts] #56928: rabbitmq-server @3.6.15_0 installed binary will not run with listed dependency erlang @21.0_0

[MacPorts]

#56928: rabbitmq-server @3.6.15_0 installed binary will not run with listed
dependency erlang @21.0_0
------------------------------+--------------------
  Reporter:  sarcas           |      Owner:  (none)
      Type:  defect           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:
Resolution:                   |   Keywords:
      Port:  rabbitmq-server  |
------------------------------+--------------------

Comment (by ltalirz):

 Thanks a lot for providing this workaround - this problem is really hard
 to debug for someone who has never had to interact with Erlang before,
 since the error message (noproc) does not provide any useful hints.

 For others suffering from this issue, here the instructions to go back to
 erlang 20.3 (which, to be honest, could also be a bit easier...)
 {{{
 git clone --single-branch https://github.com/macports/macports-ports.git
 cd macports-ports/lang/erlang/
 git checkout 66b25e1930aecb7642060ecaf1d471f4e830e830
 sudo port install
 }}}

 Plus the link to the commit history: https://github.com/macports/macports-
 ports/commits/master/lang/erlang

-- 
Ticket URL: <https://trac.macports.org/ticket/56928#comment:7>
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