reza

reza

Trying to follow Jose’s video on Announcing Livebook (with Axon). The very first Elixir cell introducing the dependencies fails on EXLA compilation. Here’s the message:

**warning: got "@impl true" for function __jit__/4 but no behaviour specifies such callback. There are no known callbacks, please specify the proper @behaviour and make sure it defines callbacks**
**  lib/exla.ex:353: EXLA (module)**

**warning: got "@impl true" for function __stream__/6 but no behaviour specifies such callback. There are no known callbacks, please specify the proper @behaviour and make sure it defines callbacks**
**  lib/exla.ex:356: EXLA (module)**

**== Compilation error in file lib/exla/defn/stream.ex ==**
**** (ArgumentError) could not load module Nx.Stream due to reason :unavailable**
**    (elixir 1.13.2) lib/protocol.ex:315: Protocol.assert_protocol!/2**
**    lib/exla/defn/stream.ex:60: (module)**
**could not compile dependency :exla, "mix compile" failed. Errors may have been logged above. You can recompile this dependency with "mix deps.compile exla", update it with "mix deps.update exla" or clean it with "mix deps.clean exla"**

I’m using: Elixir 1.13.2 & Livebook 0.5.2 on Fedora-35.

Thanks! :smiley:

Showing Posts 1 to 4

reza

reza OP

Hi there,

Here’s the compile log with more lines before the error.
It seems the compiler cann’t find Nx.Defn.Compiler, whereas I’ve got this in mix.exs:

  defp deps do
    [
      {:exla, "~> 0.1.0-dev", github: "elixir-nx/nx", sparse: "exla"},
      {:nx, "~> 0.1.0-dev", github: "elixir-nx/nx", spasre: "nx", override: true},
      {:axon, "~> 0.1.0-dev", github: "elixir-nx/axon"}
    ]
  end

====
…

Compiling 21 files (.ex)
warning: @behaviour Nx.Defn.Compiler does not exist (in module EXLA)
lib/exla.ex:1: EXLA (module)

warning: got “@impl true” for function jit/4 but no behaviour specifies such callback. There are no known callbacks, please specify the proper @behaviour and make sure it defines callbacks
lib/exla.ex:353: EXLA (module)

warning: got “@impl true” for function stream/6 but no behaviour specifies such callback. There are no known callbacks, please specify the proper @behaviour and make sure it defines callbacks
lib/exla.ex:356: EXLA (module)

== Compilation error in file lib/exla/defn/stream.ex ==
** (ArgumentError) could not load module Nx.Stream due to reason :unavailable
(elixir 1.13.3) lib/protocol.ex:315: Protocol.assert_protocol!/2
lib/exla/defn/stream.ex:60: (module)
could not compile dependency :exla, “mix compile” failed. Errors may have been logged above. You can recompile this dependency with “mix deps.compile exla”, update it with “mix deps.update exla” or clean it with “mix deps.clean exla”

Hope this makes it more clear

Thanks :smiley: (

ChrisMD2

ChrisMD2

In the EXLA readme “At the moment you will have to use a Git dependency while we work on our first release:”. Hope this helps.

reza

reza OP

Thanks. I understand.

josevalim

josevalim

Creator of Elixir

There is a typo in your deps. The word “sparse” is wrong!

— All posts loaded —

Where Next? Top

Trending in Questions Top

katta
I having some trouble figuring out if I have set myself too strict of standards for my production server. Currently I can handle 75% of r...
New
brecabral
Documentation While reading the Scoped Routes section, I noticed that the documentation currently refers to a problem without explainin...
New
nseaSeb
Hello, I know there is an approach for handling lists that allows for optimized traversal, but I can’t recall the specific method (somet...
New
kpanic
Hi everyone, I am toying with the idea of building a “match maker” for giving personal help to people that wants to start coding. I sta...
New
velrest
So my question is quite simple and i have found no conclusive answer on forum, google or AI. Should we use :erlang.float for Integer to ...
New
asweet-confluent
I recently noticed that Elixir’s Logger defaults its primary log level to :debug when no :logger, :level application configuration is pre...
New
apz
I’m new to elixir and just tried to install the elixirLS extension for VScode(ium) and it is throwing some errors that I would like help ...
New

Other Trending Topics Top

GenericJam
Edit: 2026 May 15 - This post is archived. Mob is alive!! Main docs: mob v0.7.11 — Documentation A bit of explanation for the slightly c...
New
JesseHerrick
Hey, I’m Jesse and I’m the main contributor behind Dexter, a full-featured, lightning-fast Elixir LSP optimized for large codebases. It s...
New
mudasobwa
I am happy to introduce the very α version of the new programming language compiled to BEAM. Welcome Cure. It has literally three kille...
New
garrison
Hobbes is a low-level distributed database for the Elixir programming language. Hobbes provides a simple, safe, and scalable storage lay...
New
mhanberg
Hi everyone! The first release candidate for the Expert language server project is now available! We’ve published a press release detai...
New
budgie
A little off-topic, but I feel like people here have a good head on their shoulders. I used to be quite good at making software. Was luc...
New

We're in Beta

About us Mission Statement

Options

Thread Display Mode




Thread Preview

Skip Thread Previews