After upgrade of Erlang version OTP 20 Elixir does not start

Questions & Help Questions
1 
thiel@zeus:~$ cat /usr/lib/erlang/releases/RELEASES
[{release,"Erlang/OTP","20","9.0",
          [{kernel,"5.3","/usr/lib/erlang/lib/kernel-5.3"},
           {stdlib,"3.4","/usr/lib/erlang/lib/stdlib-3.4"},
           {sasl,"3.0.4","/usr/lib/erlang/lib/sasl-3.0.4"}],
          permanent}].

thiel@zeus:~$ elixir --version
Erlang/OTP 20 [RELEASE CANDIDATE 2] [erts-9.0] [source] [smp:2:2] [ds:2:2:10] [async-threads:10] [hipe] [kernel-poll:false]

{"init terminating in do_boot",{{badmatch,error},[{'Elixir.System',build,0,[{file,"lib/system.ex"},{line,177}]},{'Elixir.System',build_info,0,[{file,"lib/system.ex"},{line,169}]},{'Elixir.Kernel.CLI',parse_shared,2,[{file,"lib/kernel/cli.ex"},{line,153}]},{'Elixir.Kernel.CLI','shared_option?',3,[{file,"lib/kernel/cli.ex"},{line,113}]},{'Elixir.Kernel.CLI',main,1,[{file,"lib/kernel/cli.ex"},{line,14}]},{init,start_em,1,[]},{init,do_boot,3,[]}]}}
init terminating in do_boot ({{badmatch,error},[{Elixir.System,build,0,[{_},{_}]},{Elixir.System,build_info,0,[{_},{_}]},{Elixir.Kernel.CLI,parse_shared,2,[{_},{_}]},{Elixir.Kernel.CLI,shared_option?,

Crash dump is being written to: erl_crash.dump...done
thiel@zeus:~$ cd ga
thiel@zeus:~/ga$ ix test
ix: opdracht niet gevonden
thiel@zeus:~/ga$ mix test
** (Version.InvalidRequirementError) ~> 1.2
    (elixir) lib/version.ex:159: Version.match?/3
    (mix) lib/mix/local.ex:100: Mix.Local.check_elixir_version_in_ebin/1
    (elixir) lib/enum.ex:645: Enum."-each/2-lists^foreach/1-0-"/2
    (elixir) lib/enum.ex:645: Enum.each/2
    (mix) lib/mix/local.ex:50: Mix.Local.append_archives/0
    (mix) lib/mix/cli.ex:8: Mix.CLI.main/1

What must I do to get Elixir running again?

Thanks

2

You need to have elixir 1.4.4 afair, also it needs to be compiled with OTP 20.

3

Yes. You need elixir 1.4.4. And recompiled against otp 20.0-rc1.

Grab kerl and kiex tooling.

4

Many thanks for your advice. Now Elixir works again! Or better Make Elixir Great Again!

Thiel

5

Hi Mr. Meltzer,

Thanks for your quick reply. I did as yuo suggested and Elixir works again.

Thiel