Build fails because of empty scene

[firatkucuk]

Bug description

Build fails because of empty initial scene value:

this is my EditorBuildSettings.asset file:

%YAML 1.1
%TAG !u! tag:unity3d.com,2011:
--- !u!1045 &1
EditorBuildSettings:
  m_ObjectHideFlags: 0
  serializedVersion: 2
  m_Scenes:
  - enabled: 1
    path: Assets/Levels/Level1.unity
    guid: 2cda990e2423bbf4892e6590ba056729
  m_configObjects: {}

but in Builder.cs following line retuns an array of empty string ['']

var scenes = EditorBuildSettings.scenes.Where(scene => scene.enabled).Select(s => s.path).ToArray();

I tried to print the exact values:

foreach (var xscene in EditorBuildSettings.scenes) {
  System.Console.WriteLine(xscene.enabled);
  System.Console.WriteLine(xscene.path);
}

The result is:

True

How to reproduce

Create a project with 2021.2.3f1 version and use and try to run github actions with default values.

Expected behavior

A Passing pipeline, I injected manually and it passes

var scenes = new[] { "Assets/Levels/Level1.unity" };

[webbertakken]

You should have one of your scenes selected from the editor.
Builder does not choose which scenes to build by itself.

Just to confirm, the EditorBuildSettings.asset that you're showing, is it committed in that state?

[webbertakken]

Possibly related to #113?

Also, which unity version are you using in CI?

[sqddnt]

i have the same problem with 2021.2.5f1, just followed the instructions, nothing specific

[firatkucuk]

You can check the following pipeline and project content:

https://github.com/firatkucuk/super-firro/runs/4421395911?check_suite_focus=true

[davidmfinol]

I'm not certain, but I suspect the problem is related to the missing .meta files.
Any reason you're not using .meta files in git?

[firatkucuk]

gitignore.io generates gitignore files without meta extension when you select Unity

[firatkucuk]

@davidmfinol seems you're right. pipeline passed with metafiles, thanks.

But those files seemed redundant to me like mac .DS_Store files, when you start unity it automatically creates all of them.

So can we put a mechanism into the builder itself either checking meta files existence or automatically create them?

[webbertakken]

If it were always possible to auto generate them, there would be no point to having these .meta files in the first place.

The meta files store settings and guids about files and folders, which ensure correct behaviour of your project. So they are indeed required.

A mechanism to go against Unity specs does not seem to be the right solution.

Was the problem solved for you by adding the meta files?

[firatkucuk]

Yes it's solved, Gonna create a PR for gitignore.io, and If you want I can create a PR for checking meta-file existence to the unity builder? Apart from that mystery is solved. thanks guys.

[webbertakken]

Feel free to create another ticket about your ideas for this meta-file check. It might be useful.