Livebook - Mix compile error for Meeseeks in Setup

[pkbyron]

Dear Community,

I am using the Meeseeks library in one of my projects on my machine.
Outside of Livebook mix compile works fine, and iex -S mix works too.

When I add the dependency to a Livebook setup I get the following error:

==> meeseeks_html5ever
Compiling 2 files (.ex)
== Compilation error in file lib/meeseeks_html5ever/native.ex ==
** (ErlangError) Erlang error: :enoent
(elixir 1.14.0) lib/system.ex:1053: System.cmd("cargo", ["metadata", "--format-version=1"], [cd:"native/meeseeks_html5ever_nif"])
(rustler 0.22.2) lib/rustler/compiler/config.ex:81: Rustler.Compiler.Config.external_resources/2
(rustler 0.22.2) lib/rustler/compiler/config.ex:69: Rustler.Compiler.Config.build/1
(rustler 0.22.2) lib/rustler/compiler.ex:9: Rustler.Compiler.compile_crate/2
lib/meeseeks_html5ever/native.ex:4: (module)
"could not compile dependency :meeseeks_html5ever, "mix compile" failed. Errors may have been logged above. You can recompile this dependency with "mix deps.compile meeseeks_html5ever", update it with "mix deps.update meeseeks_html5ever" or clean it with "mix deps.clean meeseeks_html5ever"

Not sure what I am missing.
If you have any ideas, please let me know.
Thank you.

[josevalim]

Are you using the desktop app? If so, note that your system dependencies, such as cargo, are not available to the app. You can fix this in Livebook v0.7.0 by doing this:

1. In your terminal, run which cargo and get the directory cargo is. For example, in my machine, it is /Users/jose/.cargo/bin
2. Go to Settings
3. Click to add a new Environment Variable
4. Add a variable named "PATH" with the path from step 1 (in my case, "/Users/jose/.cargo/bin")
5. If you want to have multiple paths, separate them with : on Unix/Mac or ; on Windows
6. Restart the notebook

[pkbyron]

Thank you very much!

Yes, I am on MacOS and using the latest desktop version.

Note: I followed your instructions, but it still was coming with the same error (it wasn't detecting any change as it didn't even try to recompile). So I used the install instructions for Mix, cloned the source, compiled, and ran from the command line. This triggered the recompile And this works now. Cheers.

Love livebook - productivity boon!