Always failed after run

[Chovanec]

Using intelliJ after run (desktop) program always crashes with following error: Caused by: com.badlogic.gdx.utils.GdxRuntimeException: File not found: uiskin.atlas (Internal)

> Task :desktop:DesktopLauncher.main()
Exception in thread "LWJGL Application" com.badlogic.gdx.utils.GdxRuntimeException: com.badlogic.gdx.utils.GdxRuntimeException: File not found: uiskin.atlas (Internal)
	at com.badlogic.gdx.assets.AssetManager.handleTaskError(AssetManager.java:582)
	at com.badlogic.gdx.assets.AssetManager.update(AssetManager.java:383)
	at com.badlogic.gdx.assets.AssetManager.finishLoading(AssetManager.java:404)
	at com.gdx.cellular.ui.Skins.getSkin(Skins.java:26)
	at com.gdx.cellular.ui.CreatorMenu.createDropdownStage(CreatorMenu.java:45)
	at com.gdx.cellular.ui.CreatorMenu.<init>(CreatorMenu.java:40)
	at com.gdx.cellular.input.InputManager.<init>(InputManager.java:81)
	at com.gdx.cellular.CellularAutomaton.create(CellularAutomaton.java:69)
	at com.badlogic.gdx.backends.lwjgl.LwjglApplication.mainLoop(LwjglApplication.java:149)
	at com.badlogic.gdx.backends.lwjgl.LwjglApplication$1.run(LwjglApplication.java:126)
Caused by: com.badlogic.gdx.utils.GdxRuntimeException: File not found: uiskin.atlas (Internal)
	at com.badlogic.gdx.files.FileHandle.read(FileHandle.java:136)
Caused by: com.badlogic.gdx.utils.GdxRuntimeException: File not found: uiskin.atlas (Internal)

	at com.badlogic.gdx.graphics.g2d.TextureAtlas$TextureAtlasData.<init>(TextureAtlas.java:103)
	at com.badlogic.gdx.assets.loaders.TextureAtlasLoader.getDependencies(TextureAtlasLoader.java:60)
	at com.badlogic.gdx.assets.loaders.TextureAtlasLoader.getDependencies(TextureAtlasLoader.java:34)
	at com.badlogic.gdx.assets.AssetLoadingTask.handleSyncLoader(AssetLoadingTask.java:99)
	at com.badlogic.gdx.assets.AssetLoadingTask.update(AssetLoadingTask.java:88)
	at com.badlogic.gdx.assets.AssetManager.updateTask(AssetManager.java:507)
	at com.badlogic.gdx.assets.AssetManager.update(AssetManager.java:381)
	... 8 more

Deprecated Gradle features were used in this build, making it incompatible with Gradle 5.0.
See https://docs.gradle.org/4.8.1/userguide/command_line_interface.html#sec:command_line_warnings