libgdx 源代码构建错误无法解析为类型
libgdx source code build errors cannot resolve to a type
我在设置 Libgdx 源代码时遇到问题，我已按照以下设置指南操作：
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，安装了最新版本的 JDK，安装了 Android 用于 android 25 的 SDK，并完成了所有其他步骤（如据我所知），但我的 libgdx 设置中有数千个错误，即使我尝试清理和重建也是如此。错误都在 "Cannot be resolved to a type" 行。有人知道我可能搞砸了哪一步吗？
此外，我尝试了 运行 "ant"，他们忘记在 运行 演示页面中提及，但仍然没有解决问题。
难道我用的是 Java 8 JDK，而 libgdx 还在 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
您是否在 java 构建路径中添加了所需的 .jars 文件。
通过右键单击项目→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 Jars 或 Add External JARs 并提供 Jar。
我在设置 Libgdx 源代码时遇到问题，我已按照以下设置指南操作： 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，安装了最新版本的 JDK，安装了 Android 用于 android 25 的 SDK，并完成了所有其他步骤（如据我所知），但我的 libgdx 设置中有数千个错误，即使我尝试清理和重建也是如此。错误都在 "Cannot be resolved to a type" 行。有人知道我可能搞砸了哪一步吗？
此外，我尝试了 运行 "ant"，他们忘记在 运行 演示页面中提及，但仍然没有解决问题。
难道我用的是 Java 8 JDK，而 libgdx 还在 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
您是否在 java 构建路径中添加了所需的 .jars 文件。
通过右键单击项目→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 Jars 或 Add External JARs 并提供 Jar。