Thank you, it will be fixed in the next release then!
josevalim
Creator of Elixir
CharlesO
lucas-stellet
Hi!
First of all, thanks for the release.
I tried to use the module observer with the Elixir 1.15.0-otp-26 and Erlang 26.0.1 but I received the error below:
Erlang/OTP 25 [erts-13.2.2.1] [source] [64-bit] [smp:10:10] [ds:10:10:10] [async-threads:1] [jit]
Compiling 6 files (.ex)
Generated todo app
Interactive Elixir (1.15.0) - press Ctrl+C to exit (type h() ENTER for help)
iex(1)> :observer.start()
** (UndefinedFunctionError) function :observer.start/0 is undefined (module :observer is not available)
:observer.start()
iex:1: (file)
When I changed to Elixir version 1.14.5-otp-26 and the same version, it worked
What could it be?
Thanks again!
0
josevalim
Creator of Elixir
You must either:
- List :observer under extra_applications in your mix.exs
- Tell Mix to make the application available to you by calling
Mix.ensure_application!(:observer)
0
lucas-stellet
Sorry, but I forgot to mention that I tried this approach.
I received the error below:
iex(1)> :observer.start()
** (UndefinedFunctionError) function :wx_object.start/3 is undefined (module :wx_object is not available)
:wx_object.start(:observer_wx, [], [])
(observer 2.15) observer_wx.erl:70: :observer_wx.start/0
iex:1: (file)
I’m using a macbook m1 pro. I’ll share the my ASDF env values.
export KERL_CONFIGURE_OPTIONS="--without-javac --with-ssl=$(brew --prefix openssl@1.1)"
export KERL_BUILD_DOCS=yes
export KERL_INSTALL_HTMLDOCS=no
export KERL_INSTALL_MANPAGES=no
export ELIXIR_ERL_OPTIONS="-kernel shell_history enabled"
export PATH=$PATH:/Users/lucas/.asdf/shims
export LDFLAGS="-L/opt/homebrew/opt/libxslt/lib"
export CPPFLAGS="-I/opt/homebrew/opt/libxslt/include"
0
josevalim
Creator of Elixir
Good catch. Apparently Observer does not declare its dependencies on wx and runtime_tools, so they need to be added manually:
Mix.ensure_application!(:runtime_tools)
Mix.ensure_application!(:wx)
I will inquire the Erlang/OTP team why that’s the case.
3
lucas-stellet
xpg
First off, thanks for another version of Elixir. Good job everyone involved!
I am seeing a strange problem since I started using Elixir 1.15. Once in a while, compilations fails with the following error:
** (File.Error) could not read file "native/csv_exporter/src": illegal operation on a directory
(elixir 1.15.0) lib/file.ex:358: File.read!/1
(mix 1.15.0) lib/mix/compilers/elixir.ex:441: Mix.Compilers.Elixir.digest_file!/1
(mix 1.15.0) lib/mix/compilers/elixir.ex:426: Mix.Compilers.Elixir.stale_external?/3
(elixir 1.15.0) lib/enum.ex:4190: Enum.predicate_list/3
(mix 1.15.0) lib/mix/compilers/elixir.ex:394: anonymous fn/6 in Mix.Compilers.Elixir.compiler_info_from_updated/9
(elixir 1.15.0) lib/enum.ex:2510: Enum."-reduce/3-lists^foldl/2-0-"/3
(mix 1.15.0) lib/mix/compilers/elixir.ex:385: Mix.Compilers.Elixir.compiler_info_from_updated/9
(mix 1.15.0) lib/mix/compilers/elixir.ex:134: Mix.Compilers.Elixir.compile/7
I really have no clue how to reproduce it, but I have a suspicion of what the problem is: We use Rustler to build csv_exporter. As far as I can see, Rustler will include directories as external resources. I guess this causes some issues with the digest calculation. What I don’t understand is why it doesn’t fail every time.
Currently, I am using a custom version of Rustler, where directories are removed from the external resources. Seems to be working, but it would be good to verify that this is the likely root-cause.
0
josevalim
Creator of Elixir
It seems to be a race condition. We check those files exist before but they are being deleted after milliseconds of checked for their existence. I pushed a fix to Elixir to not assume the external resource and also a PR to Rustler.
1
tosie
We have a pretty standard Phoenix app here which uses a bin/migrate file (basically exec ./myapp eval Myapp.Release.migrate) to run migrations before releasing a new version.
For some reason I am getting this error when starting the migration (after the update to Elixir 1.15.0):
ERROR! Config provider Config.Reader failed with:
** (ArgumentError) could not fetch application environment :always_evaluate_messages for application :logger because the application was not loaded nor configured
(elixir 1.15.0) lib/application.ex:775: Application.fetch_env!/2
lib/logger.ex:1012: Logger.macro_log/4
expanding macro: Logger.warning/1
/app/releases/0.1.0/runtime.exs:212: (file)
(elixir 1.15.0) expanding macro: Kernel.if/2
/app/releases/0.1.0/runtime.exs:211: (file)
(elixir 1.15.0) expanding macro: Kernel.if/2
/app/releases/0.1.0/runtime.exs:48: (file)
{"init terminating in do_boot",{#{'__exception__'=>true,'__struct__'=>'Elixir.ArgumentError',message=><<"could not fetch application environment :always_evaluate_messages for application :logger because the application was not loaded nor configured">>},[{'Elixir.Application','fetch_env!',2,[{file,"lib/application.ex"},{line,775}]},{'Elixir.Logger',macro_log,4,[{file,"lib/logger.ex"},{line,1012}]},{'Elixir.Logger',warning,1,[{file,"expanding macro"}]},{elixir_compiler_0,'__FILE__',1,[{file,"/app/releases/0.1.0/runtime.exs"},{line,212}]},{'Elixir.Kernel',if,2,[{file,"expanding macro"}]},{elixir_compiler_0,'__FILE__',1,[{file,"/app/releases/0.1.0/runtime.exs"},{line,211}]},{'Elixir.Kernel',if,2,[{file,"expanding macro"}]},{elixir_compiler_0,'__FILE__',1,[{file,"/app/releases/0.1.0/runtime.exs"},{line,48}]}]}}
init terminating in do_boot ({,[{Elixir.Application,fetch_env!,2,[{_},{_}]},{Elixir.Logger,macro_log,4,[{_},{_}]},{Elixir.Logger,warning,1,[{_}]},{elixir_compiler_0,__FILE__,1,[{_},{_}]},{Elixir.Kernel,if,2,[{_}]},{elixir_compiler_0,__FILE__,1,[{_},{_}]},{Elixir.Kernel,if,2,[{_}]},{elixir_compiler_0,__FILE__,1,[{_},{_}]}]})
The Myapp.Release module looks like this:
defmodule Myapp.Release do
@moduledoc """
Used for executing DB release tasks when run in production without Mix
installed.
"""
@app :myapp
require Logger
def migrate do
load_app()
for repo <- repos() do
# Ensure the repo is started. Then, if the "schema_migrations"
# table does not exist, run the `structure.sql` file for the repo.
{:ok, _, _} = Ecto.Migrator.with_repo(repo, &check_and_execute_structure_sql(&1))
{:ok, _, _} = Ecto.Migrator.with_repo(repo, &Ecto.Migrator.run(&1, :up, all: true))
end
end
def rollback(repo, version) do
load_app()
{:ok, _, _} = Ecto.Migrator.with_repo(repo, &Ecto.Migrator.run(&1, :down, to: version))
end
defp check_and_execute_structure_sql(repo) do
config = repo.config()
app_name = Keyword.fetch!(config, :otp_app)
if Ecto.Adapters.SQL.table_exists?(repo, "schema_migrations") do
Logger.info("schema_migrations table already exists")
:ok
else
case repo.__adapter__().structure_load(
Application.app_dir(app_name, "priv/repo"),
repo.config()
) do
{:ok, location} = success ->
Logger.info("The structure for #{inspect(repo)} has been loaded from #{location}")
success
{:error, term} when is_binary(term) ->
Logger.error("The structure for #{inspect(repo)} couldn't be loaded: #{term}")
{:error, inspect(term)}
{:error, term} ->
Logger.error("The structure for #{inspect(repo)} couldn't be loaded: #{inspect(term)}")
{:error, inspect(term)}
end
end
end
defp repos do
Application.fetch_env!(@app, :ecto_repos)
end
defp load_app do
Application.load(@app)
end
end
I seem to understand what the error is, but I have no clue what to do about it. Can somebody give me a nudge in the right direction?
0