LibGDX桌面启动错误

Question

我在Libgdx玩游戏。它现在不会在桌面版或Android上运行。当我将Main.java作为桌面应用程序运行时，它会发送这些错误..我也会发布我的代码。感谢。

错误：

Exception in thread "main" java.lang.NoClassDefFoundError: com/badlogic/gdx/graphics/GLCommon
    at com.badlogic.gdx.backends.lwjgl.LwjglApplication.<init>(LwjglApplication.java:64)
    at com.ahewdev.spacepace.Main.main(Main.java:17)
Caused by: java.lang.ClassNotFoundException: com.badlogic.gdx.graphics.GLCommon
    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)
    ... 2 more

桌面 - Main.java代码

package com.ahewdev.spacepace;

import com.badlogic.gdx.backends.lwjgl.LwjglApplication;
import com.badlogic.gdx.backends.lwjgl.LwjglApplicationConfiguration;
import com.ahewdev.spacepace.SpacePace;
import com.badlogic.gdx.graphics.*;
import com.badlogic.gdx.setup.resources.desktop.*;

public class Main {
    public static void main(String[] args) {
        LwjglApplicationConfiguration cfg = new LwjglApplicationConfiguration();
        cfg.title = "spacepace";
        cfg.width = 480;
        cfg.height = 320;
        cfg.useGL20 = false;

        new LwjglApplication(new SpacePace(), cfg);
    }
}

编辑：