[godot] Spurious errors when importing atlas pngs and Spine icon not showing up

[badlogic]

See https://esotericsoftware.com/forum/d/24839-cant-import-skeletons

No idea where these come from, or why the path shown is entirely weird.

The errors are non-sensical, the import works as intended.

The Spine icon is not shown for Spine resources in Godot 4.x.

[Jan-PieterInghels]

I am in the process of testing updating from runtime 4.2.1 to 4.2.2 and I can confirm that "The Spine icon is not shown for Spine resources in Godot 4.x" is still an active issue in 4.2.2.

[misaki-eymard]

Another user reported on this issue on the forum, so I did some research and would like to add the following:

This error can be easily reproduced by simply creating a Godot 4.x project and importing the skeleton files. The following error log is printed in the Output dock:

• No loader found for resource: res://spineboy-pro.png (expected type: )
• /Users/runner/work/spine-runtimes/spine-runtimes/spine-godot/spine_godot/SpineAtlasResource.cpp:74 - Can't load texture: "res://spineboy-pro.png"

However, there are no particular problems with displaying the skeleton in the scene, so there is no real harm.

This occurs in Godot 4.1.4, 4.1.4-mono, 4.2.2 and 4.2.2-mono, and does not occur in Godot 3.5.3.
This error has been confirmed to occur for both Windows and macOS users.