LibGDX - Error reading file: uiskin.json
I found several similar questions on this topic, but none helped me. I downloaded the "uiskin.xxx" and "default.fnt" files from Github to start playing with a few test assets, but there seems to be a problem with the uiskin.json file. All files are located in android / assets / Skins folder.
This is the code where the json file is loaded:
public class Assets {
public static AssetManager manager = new AssetManager();
public static Skin menuSkin;
public static void queueLoading() {
manager.load("Skins/uiskin.atlas", TextureAtlas.class);
manager.load("Ressources/DemonHunter.jpg", Texture.class);
manager.load("Ressources/DemonWarrior.jpg", Texture.class);
manager.load("Ressources/WingedDemon.jpg", Texture.class);
manager.load("Ressources/Viking.jpg", Texture.class);
}
public static void setMenuSkin() {
if (menuSkin == null)
menuSkin = new Skin(Gdx.files.internal("Skins/uiskin.json"),
manager.get("Skins/uiskin.atlas", TextureAtlas.class));
}
public static boolean update() {
return manager.update();
}
}
This is the json file:
{
com.badlogic.gdx.graphics.g2d.BitmapFont: { default-font: { file: Skins/default.fnt } },
com.badlogic.gdx.graphics.Color: {
green: { a: 1, b: 0, g: 1, r: 0 },
white: { a: 1, b: 1, g: 1, r: 1 },
red: { a: 1, b: 0, g: 0, r: 1 },
black: { a: 1, b: 0, g: 0, r: 0 },
},
com.badlogic.gdx.scenes.scene2d.ui.Skin$TintedDrawable: {
dialogDim: { name: white, color: { r: 0, g: 0, b: 0, a: 0.45 } },
},
com.badlogic.gdx.scenes.scene2d.ui.Button$ButtonStyle: {
default: { down: default-round-down, up: default-round },
toggle: { down: default-round-down, checked: default-round-down, up: default-round }
},
com.badlogic.gdx.scenes.scene2d.ui.TextButton$TextButtonStyle: {
default: { down: default-round-down, up: default-round, font: default-font, fontColor: white },
toggle: { down: default-round-down, up: default-round, checked: default-round-down, font: default-font, fontColor: white, downFontColor: red }
},
com.badlogic.gdx.scenes.scene2d.ui.ScrollPane$ScrollPaneStyle: {
default: { vScroll: default-scroll, hScrollKnob: default-round-large, background: default-rect, hScroll: default-scroll, vScrollKnob: default-round-large }
},
com.badlogic.gdx.scenes.scene2d.ui.SelectBox$SelectBoxStyle: {
default: {
font: default-font, fontColor: white, background: default-select,
scrollStyle: default,
listStyle: { font: default-font, selection: default-select-selection }
}
},
com.badlogic.gdx.scenes.scene2d.ui.SplitPane$SplitPaneStyle: {
default-vertical: { handle: default-splitpane-vertical },
default-horizontal: { handle: default-splitpane }
},
com.badlogic.gdx.scenes.scene2d.ui.Window$WindowStyle: {
default: { titleFont: default-font, background: default-window, titleFontColor: white },
dialog: { titleFont: default-font, background: default-window, titleFontColor: white, stageBackground: dialogDim }
},
com.badlogic.gdx.scenes.scene2d.ui.ProgressBar$ProgressBarStyle: {
default-horizontal: { background: default-slider, knob: default-slider-knob },
default-vertical: { background: default-slider, knob: default-round-large }
},
com.badlogic.gdx.scenes.scene2d.ui.Slider$SliderStyle: {
default-horizontal: { background: default-slider, knob: default-slider-knob },
default-vertical: { background: default-slider, knob: default-round-large }
},
com.badlogic.gdx.scenes.scene2d.ui.Label$LabelStyle: {
default: { font: default-font, fontColor: white }
},
com.badlogic.gdx.scenes.scene2d.ui.TextField$TextFieldStyle: {
default: { selection: selection, background: textfield, font: default-font, fontColor: white, cursor: cursor }
},
com.badlogic.gdx.scenes.scene2d.ui.CheckBox$CheckBoxStyle: {
default: { checkboxOn: check-on, checkboxOff: check-off, font: default-font, fontColor: white }
},
com.badlogic.gdx.scenes.scene2d.ui.List$ListStyle: {
default: { fontColorUnselected: white, selection: selection, fontColorSelected: white, font: default-font }
},
com.badlogic.gdx.scenes.scene2d.ui.Touchpad$TouchpadStyle: {
default: { background: default-pane, knob: default-round-large }
},
com.badlogic.gdx.scenes.scene2d.ui.Tree$TreeStyle: {
default: { minus: tree-minus, plus: tree-plus, selection: default-select-selection }
},
com.badlogic.gdx.scenes.scene2d.ui.TextTooltip$TextTooltipStyle: {
default: {
label: { font: default-font, fontColor: white },
background: default-pane
}
},
}
I'm not sure if the path is correct at the beginning, but I've tried several different paths to make sure it's not a bug.
And here's the error:
Exception in thread "LWJGL Application" com.badlogic.gdx.utils.SerializationException: Error reading file: Skins/uiskin.json
at com.badlogic.gdx.scenes.scene2d.ui.Skin.load(Skin.java:97)
at com.badlogic.gdx.scenes.scene2d.ui.Skin.<init>(Skin.java:82)
at com.valhallagames.hfp.data.Assets.setMenuSkin(Assets.java:26)
at com.valhallagames.hfp.screens.Splash.render(Splash.java:34)
at com.badlogic.gdx.Game.render(Game.java:46)
at com.badlogic.gdx.backends.lwjgl.LwjglApplication.mainLoop(LwjglApplication.java:215)
at com.badlogic.gdx.backends.lwjgl.LwjglApplication$1.run(LwjglApplication.java:120)
Caused by: com.badlogic.gdx.utils.SerializationException: Error reading file: Skins/uiskin.json
at com.badlogic.gdx.utils.Json.fromJson(Json.java:683)
at com.badlogic.gdx.scenes.scene2d.ui.Skin.load(Skin.java:95)
... 6 more
Caused by: com.badlogic.gdx.utils.SerializationException:
at com.badlogic.gdx.scenes.scene2d.ui.Skin$2.read(Skin.java:416)
at com.badlogic.gdx.scenes.scene2d.ui.Skin$2.read(Skin.java:410)
at com.badlogic.gdx.utils.Json.readValue(Json.java:867)
at com.badlogic.gdx.scenes.scene2d.ui.Skin$1.readValue(Skin.java:404)
at com.badlogic.gdx.utils.Json.fromJson(Json.java:681)
... 7 more
Caused by: com.badlogic.gdx.utils.reflect.ReflectionException: Class not found: com.badlogic.gdx.scenes.scene2d.ui.TextTooltip$TextTooltipStyle
at com.badlogic.gdx.utils.reflect.ClassReflection.forName(ClassReflection.java:30)
at com.badlogic.gdx.scenes.scene2d.ui.Skin$2.read(Skin.java:414)
... 11 more
Caused by: java.lang.ClassNotFoundException: com.badlogic.gdx.scenes.scene2d.ui.TextTooltip$TextTooltipStyle
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at com.badlogic.gdx.utils.reflect.ClassReflection.forName(ClassReflection.java:28)
... 12 more
Thanks for every answer :). Cheers, Joshflux
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2 answers
As suggested by James Sump in the comments, open the uiskin.json file in your IDE and remove the following lines or similar files from it and save the file:
com.badlogic.gdx.scenes.scene2d.ui.TextTooltip$TextTooltipStyle: {
default: {
label: { font: default-font, fontColor: white },
background: default-pane
}
}
It should now work fine. I don't know why this works.
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Do you have an atlas file? If not, you should. And they are used like this:
FileHandle fileHandle = Gdx.files.internal("pathToMyJsonFile/fileNameForMyJson.json");
FileHandle atlasFile = fileHandle.sibling("fileNameForMyJson.atlas");
if (atlasFile.exists()) {
Gdx.app.log("MyGame", "atlas file is loaded");
skin.addRegions(new TextureAtlas(atlasFile));
} else {
Gdx.app.log("MyGame", "atlas file is NOT loaded");
}
The Atlas file defines the locations of your textures in the png file. You can find the API for TextureAtlas here .
Your json file has a link to the default panel. Here is NOT . Atlas file where it should be defined.
Hope this helps. =]
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