Cannot compile ssl_verify_fun in Windows 11 for Elixir

[Fl4m3Ph03n1x]

Answer

After some more digging I found out this issue:

ssl_verify_fun doesn't compile with Elixir 1.15

Which represents my problem. Basically Elixir does not check the correct paths for the missing file:

public_key.hrl header cannot be found

Now, there is a possible workaround for this issue. By forcing your application to use a more updated version of the dependency in question (ssl_verify_fun), you can add this to your mix.exs file:

{:ssl_verify_fun, “~> 1.1.7”, manager: :rebar3, override: true}

However, I don’t really like this. If tomorrow the same thing happens, you have to overwrite again. And when overwrites start conflicting with each other, then you really have a problem.

In my case, I found which application was using the old version of ssl_verify_fun by looking at mix.lock. It was hackney.

However, instead of going through every dependency and trying to fix it, I took the more nuclear approach. I deleted my mix.lock and then run mix deps.update --all.

This forced some older dependencies to update. After that a simple mix deps.get fixed the issue and mix phx.server worked.

You can find more information in the Elixir Forum thread:

Cannot compile ssl_verify_fun in Windows 11