Unable to start app in dev env

[skwerlman]

Running the app generated by mix scenic.new without specifying the env (or specifying the dev env) results in the following error:

sk:/mnt/code/deck_ex $ mix scenic.run
sh: /mnt/code/deck_ex/_build/dev/lib/scenic_driver_glfw/priv/prod/scenic_driver_glfw: No such file or directory

19:53:33.183 [error] dirty close

running it using in the prod env works as expected:

sk:/mnt/code/deck_ex $ MIX_ENV=prod mix scenic.run
Compiling 1 file (.ex)

19:55:52.065 [info]  Received event: {:viewport_enter, {320.0, 239.0}}

19:55:52.076 [info]  Received event: {:cursor_enter, 4}

19:55:52.076 [info]  Received event: {:cursor_pos, {320.0, 239.0}}

19:55:53.272 [info]  Received event: {:cursor_pos, {319.0, 236.0}}

(cont)

running tests also seems to work, though no tests are defined

version info

scenic: 0.10.2
scenic_driver_glfw: 0.10.2
elixir/erlang:

Erlang/OTP 22 [erts-10.4.1] [source] [64-bit] [smp:32:32] [ds:32:32:10] [async-threads:1] [hipe]

Elixir 1.8.2 (compiled with Erlang/OTP 22)

linux (archlinux):

Linux a2 5.1.15-zen1-1-zen #1 ZEN SMP PREEMPT Tue Jun 25 04:49:28 UTC 2019 x86_64 GNU/Linux

lemme know if there's any more info you need

[boydm]

The dirty close indicates the driver had a crash somewhere.

This is going to be hard for me to track down as I don't use or have archlinux installed. Probably a issue with the graphics driver.

Which driver are you using? Also, is Wayland installed?

[skwerlman]

I'm using the proprietary nvidia driver (the dkms variant), version 430.26-7 along with glew 2.1.0-1 and glfw-x11 3.3-2

wayland is installed, along with xorg-server-xwayland; however, using the wayland variants of glew and glfw im unable to get it to work even in prod

[axelson]

Hmmm, this looks like this might be the same issue I'm running into in ScenicFramework/scenic_new#36 (and I'm also on Arch Linux). For me I've noticed that it works if I run:

rm -rf _build/dev/lib/scenic_driver_glfw
mix scenic.run

Also the main difference appears to be that _build/dev/lib/scenic_driver_glfw/priv is a symlink after running the commands above, while initially it is not a symlink.

[axelson]

As far as I can tell the issue seems to be that when the environment variable MIX_ENV is not set or is set to dev that Mix.env() is returning :prod which messes up all the paths. But I have been unable to track down why Mix.env() is returning an incorrect value.

[skwerlman]

can confirm this workaround allows me to start the app in :dev

[axelson]

Also it looks like it is expected that dependencies are compiled with mix env :prod: https://hexdocs.pm/mix/Mix.Tasks.Deps.html#module-dependency-definition-options

[nyaray]

I can confirm that setting MIX_ENV to prod works to get a newly generated app to start on mac.

[axelson]

Hmmm, setting MIX_ENV to prod doesn't workaround the issue for me.

[axelson]

This can be closed now that #26 is fixed (unless it shouldn't be closed until the next release is cut)

[boydm]

The fix for this is now published to hex in v0.10.1

[skwerlman]

fix is confirmed working on a new project (and in previously broken ones)! thanks!