libgdx源代码生成错误无法解析到我无法建立Libgdx源代码类型

Question

，我跟着这两个设置指南： https://github.com/libgdx/libgdx/wiki/Setting-up-your-Development-Environment-%28Eclipse%2C-Intellij-IDEA%2C-NetBeans%29

https://github.com/libgdx/libgdx/wiki/Running-demos-%26-tests

我已经下载了源代码，拥有最新版本的JDK，拥有安装了Android 25的Android SDK，并完成了所有其他步骤（据我所知，正确），但是我的libgdx安装程序有成千上万的错误，即使我尝试清洁和重建。这些错误都是“无法解析为某种类型”的。任何人都知道我可能弄错了什么？

此外，我尝试运行“蚂蚁”，他们忘了在正在运行的演示页面中提到，但仍然没有解决问题。

难道是因为我在使用Java 8 JDK，而libgdx仍然在Java 7上？

Description Resource Path Location Type 
AnimationCallback cannot be resolved to a type GwtApplication.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt line 214 Java Problem 
AnimationScheduler cannot be resolved GamepadSupport.java /gdx-controllers-gwt/src/com/badlogic/gdx/controllers/gwt/support line 143 Java Problem 
AnimationScheduler cannot be resolved GamepadSupport.java /gdx-controllers-gwt/src/com/badlogic/gdx/controllers/gwt/support line 156 Java Problem 
AnimationScheduler cannot be resolved GwtApplication.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt line 214 Java Problem 
AnimationScheduler cannot be resolved GwtApplication.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt line 223 Java Problem 
AnimationScheduler cannot be resolved to a type GamepadSupport.java /gdx-controllers-gwt/src/com/badlogic/gdx/controllers/gwt/support line 136 Java Problem 
ArrayBuffer cannot be resolved to a type DirectByteBuffer.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt/emu/java/nio line 43 Java Problem 
ArrayBuffer cannot be resolved to a type DirectByteBuffer.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt/emu/java/nio line 47 Java Problem 
ArrayBuffer cannot be resolved to a type DirectReadOnlyByteBuffer.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt/emu/java/nio line 41 Java Problem 
ArrayBuffer cannot be resolved to a type DirectReadWriteByteBuffer.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt/emu/java/nio line 41 Java Problem 
ArrayBuffer cannot be resolved to a type DirectReadWriteByteBuffer.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt/emu/java/nio line 49 Java Problem 
ArrayBuffer cannot be resolved to a type WebGLRenderingContext.java /gdx-backends-gwt/src/com/google/gwt/webgl/client line 569 Java Problem 
ArrayBuffer cannot be resolved to a type WebGLRenderingContext.java /gdx-backends-gwt/src/com/google/gwt/webgl/client line 577 Java Problem 
ArrayBufferNative cannot be resolved DirectByteBuffer.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt/emu/java/nio line 40 Java Problem 
ArrayBufferView cannot be resolved to a type DirectByteBuffer.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt/emu/java/nio line 52 Java Problem 
ArrayBufferView cannot be resolved to a type DirectReadOnlyFloatBufferAdapter.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt/emu/java/nio line 138 Java Problem 
ArrayBufferView cannot be resolved to a type DirectReadOnlyIntBufferAdapter.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt/emu/java/nio line 138 Java Problem 
ArrayBufferView cannot be resolved to a type DirectReadOnlyShortBufferAdapter.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt/emu/java/nio line 137 Java Problem 
ArrayBufferView cannot be resolved to a type DirectReadWriteFloatBufferAdapter.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt/emu/java/nio line 155 Java Problem 
ArrayBufferView cannot be resolved to a type DirectReadWriteIntBufferAdapter.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt/emu/java/nio line 153 Java Problem 
ArrayBufferView cannot be resolved to a type DirectReadWriteShortBufferAdapter.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt/emu/java/nio line 155 Java Problem 
ArrayBufferView cannot be resolved to a type GwtGL20.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt line 881 Java Problem 
ArrayBufferView cannot be resolved to a type GwtGL20.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt line 882 Java Problem 
ArrayBufferView cannot be resolved to a type GwtGL20.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt line 929 Java Problem 
ArrayBufferView cannot be resolved to a type GwtGL20.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt line 930 Java Problem 
ArrayBufferView cannot be resolved to a type HasArrayBufferView.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt/emu/java/nio line 23 Java Problem 
ArrayBufferView cannot be resolved to a type ScreenUtils.java /gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt/emu/com/badlogic/gdx/utils line 89 Java Problem 
ArrayBufferView cannot be resolved to a type WebGLRenderingContext.java /gdx-backends-gwt/src/com/google/gwt/webgl/client line 565 Java Problem 
ArrayBufferView cannot be resolved to a type WebGLRenderingContext.java /gdx-backends-gwt/src/com/google/gwt/webgl/client line 573 Java Problem 
ArrayBufferView cannot be resolved to a type WebGLRenderingContext.java /gdx-backends-gwt/src/com/google/gwt/webgl/client line 829 Java Problem 

Answer 1

您是否在java构建路径中添加了需要的.jars文件。

右键单击项目→构建路径→配置构建路径，在Eclipse中添加所需的jar。在Libraries选项卡下，单击Add Jrs或添加外部JAR并提供Jar。