I cannot open up my files at all!

[Frozen_Fried]

Are your .tscn flies showing file size like in KB or MB ? And just try opening a .tscn on windows default notepad again.

These posts may help you:

Failed loading resource: res://player.tscn

I found where is the problem. I accidentaly export level 2 scene to player scene and player scene to level 2 scene. To fix that, right click on the scene, open in external program and find and delete the PackedScene.

Load errors when opening the project

I’ve now managed to solve the problem. The reason why map_editor.tscn was not loading properly was, as I said, another scene (gui.tscn). The reason that was not loading correctly was that in an attached script I have a reference to another scene, options.tscn. The root node of this scene also had a script attached, in which there was a reference to a static variable of the class MainMenu. I have no clue why this was a problem, but after moving the referenced variable to my Lib class (which I …