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Iex -S mix giving me (SyntaxError) /home/user/.asdf/shims/mix:3:17: syntax error before: '.'

#iex#troubleshooting
miso

miso

Iex -S mix giving me (SyntaxError) /home/user/.asdf/shims/mix:3:17: syntax error before: '.'

$ mix new foo
$ cd foo
$ iex -S mix

showed

Erlang/OTP 25 [erts-13.1.4] [source] [64-bit] [smp:4:4] [ds:4:4:10] [async-threads:1] [jit:ns]

** (SyntaxError) /home/user/.asdf/shims/mix:3:17: syntax error before: '.'
    |
  3 | exec /home/user/.asdf/bin/asdf exec "mix" "$@" # asdf_allow: ' asdf '
    |                 ^
    (elixir 1.13.0) lib/code.ex:1183: Code.require_file/2

iex works fine.
what happened to me?

3 comments
#iex#troubleshooting
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Most Liked

Moosieus

Moosieus

Ran into this error invoking /path/to/iex -S mix where iex was built from Elixir source.

Resolved by switching to mise: https://mise.jdx.dev

Mostly a drop-in replacement for asdf that’s compatible with asdf plugins.

1
Post #3
Graborg

Graborg

I encountered the same error after starting a new repo with a new Erlang version, but a Elixir version that I previously installed. I thus ran

asdf uninstall elixir 1.16.2
asdf install elixir 1.16.2

After which it worked.

1
Post #4

Where Next?

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