java - 无法在 Netbeans 上编译 libGDX

Question

我正在尝试使用 Netbeans 建立一个简单的 libGDX 项目。不幸的是，我的编译器似乎找不到任何要链接的 libGDX jar。 Gradle 不是应该自动为您查找并安装所有依赖项吗？无论如何，当我尝试“运行”桌面项目时，编译器会给出以下信息:

Executing: gradle run
Arguments: [-c, C:\dev\starling2\game\2016\fightland\libgdx\settings.gradle]

Configuration on demand is an incubating feature.
warning: [options] bootstrap class path not set in conjunction with -source 1.6
C:\dev\starling2\game\2016\fightland\libgdx\core\src\com\kitfox\fightland\FightlandGdxGame.java:3: error: package com.badlogic.gdx does not exist
import com.badlogic.gdx.ApplicationAdapter;
                       ^
C:\dev\starling2\game\2016\fightland\libgdx\core\src\com\kitfox\fightland\FightlandGdxGame.java:4: error: package com.badlogic.gdx does not exist
import com.badlogic.gdx.Gdx;
                       ^
C:\dev\starling2\game\2016\fightland\libgdx\core\src\com\kitfox\fightland\FightlandGdxGame.java:5: error: package com.badlogic.gdx.graphics does not exist
import com.badlogic.gdx.graphics.GL20;
                                ^
C:\dev\starling2\game\2016\fightland\libgdx\core\src\com\kitfox\fightland\FightlandGdxGame.java:6: error: package com.badlogic.gdx.graphics does not exist
import com.badlogic.gdx.graphics.Texture;
                                ^
C:\dev\starling2\game\2016\fightland\libgdx\core\src\com\kitfox\fightland\FightlandGdxGame.java:7: error: package com.badlogic.gdx.graphics.g2d does not exist
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
                                    ^
C:\dev\starling2\game\2016\fightland\libgdx\core\src\com\kitfox\fightland\FightlandGdxGame.java:9: error: cannot find symbol
public class FightlandGdxGame extends ApplicationAdapter {
                                      ^
  symbol: class ApplicationAdapter
C:\dev\starling2\game\2016\fightland\libgdx\core\src\com\kitfox\fightland\FightlandGdxGame.java:10: error: cannot find symbol
    SpriteBatch batch;
    ^
  symbol:   class SpriteBatch
  location: class FightlandGdxGame
C:\dev\starling2\game\2016\fightland\libgdx\core\src\com\kitfox\fightland\FightlandGdxGame.java:11: error: cannot find symbol
    Texture img;
    ^
  symbol:   class Texture
  location: class FightlandGdxGame
C:\dev\starling2\game\2016\fightland\libgdx\core\src\com\kitfox\fightland\FightlandGdxGame.java:13: error: method does not override or implement a method from a supertype
    @Override
    ^
C:\dev\starling2\game\2016\fightland\libgdx\core\src\com\kitfox\fightland\FightlandGdxGame.java:15: error: cannot find symbol
        batch = new SpriteBatch();
                    ^
  symbol:   class SpriteBatch
  location: class FightlandGdxGame
C:\dev\starling2\game\2016\fightland\libgdx\core\src\com\kitfox\fightland\FightlandGdxGame.java:16: error: cannot find symbol
        img = new Texture("badlogic.jpg");
                  ^
  symbol:   class Texture
  location: class FightlandGdxGame
C:\dev\starling2\game\2016\fightland\libgdx\core\src\com\kitfox\fightland\FightlandGdxGame.java:19: error: method does not override or implement a method from a supertype
    @Override
    ^
C:\dev\starling2\game\2016\fightland\libgdx\core\src\com\kitfox\fightland\FightlandGdxGame.java:21: error: package Gdx does not exist
        Gdx.gl.glClearColor(1, 0, 0, 1);
           ^
C:\dev\starling2\game\2016\fightland\libgdx\core\src\com\kitfox\fightland\FightlandGdxGame.java:22: error: cannot find symbol
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
                       ^
  symbol:   variable GL20
  location: class FightlandGdxGame
C:\dev\starling2\game\2016\fightland\libgdx\core\src\com\kitfox\fightland\FightlandGdxGame.java:22: error: package Gdx does not exist
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
           ^
15 errors
1 warning
:core:compileJava FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':core:compileJava'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 2.246 secs



Build failure (see the Notifications window for stacktrace): gradle run

这是从 libGDX 项目设置实用程序新生成的代码。我没有做任何改变。我尝试将根项目中的源代码级别更改为 1.6，但这没有帮助。

我读到的另一篇文章建议将 libGDX jar 放在我的类路径中，但我不确定这些 jar 是什么或在哪里可以找到它们。

我记得大约一年半前这样做，没有遇到任何问题。我不确定我做错了什么。

<小时/>

因此，我可以通过使用从早期版本的安装插件生成的 libGDX 项目中获取的代码来修补我的 build.gradle 文件，从而在某种程度上解决我的问题。基本上，最新版本的 gdx-setup.jar 生成的 build.gradle 的“依赖”子句完全是空的。我将它们重写为看起来像

project(":desktop") {
    apply plugin: "java"


    dependencies {
        compile project(":core")
        compile "com.badlogicgames.gdx:gdx-backend-lwjgl:$gdxVersion"
        compile "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-desktop"
        compile "com.badlogicgames.gdx:gdx-bullet-platform:$gdxVersion:natives-desktop"
        compile "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-desktop"
        compile "com.badlogicgames.gdx:gdx-tools:$gdxVersion"
    }
}

project(":android") {
    apply plugin: "android"

    configurations { natives }

    dependencies {
        compile project(":core")
        compile "com.badlogicgames.gdx:gdx-backend-android:$gdxVersion"
        natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-armeabi"
        natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-armeabi-v7a"
        natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-x86"
        compile "com.badlogicgames.gdx:gdx-bullet:$gdxVersion"
        natives "com.badlogicgames.gdx:gdx-bullet-platform:$gdxVersion:natives-armeabi"
        natives "com.badlogicgames.gdx:gdx-bullet-platform:$gdxVersion:natives-armeabi-v7a"
        natives "com.badlogicgames.gdx:gdx-bullet-platform:$gdxVersion:natives-x86"
        compile "com.badlogicgames.gdx:gdx-freetype:$gdxVersion"
        natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-armeabi"
        natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-armeabi-v7a"
        natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-x86"
        compile "com.badlogicgames.gdx:gdx-ai:$aiVersion"
    }
}

project(":ios") {
    apply plugin: "java"
    apply plugin: "robovm"


    dependencies {
        compile project(":core")
        compile "org.robovm:robovm-rt:$roboVMVersion"
        compile "org.robovm:robovm-cocoatouch:$roboVMVersion"
        compile "com.badlogicgames.gdx:gdx-backend-robovm:$gdxVersion"
        compile "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-ios"
        compile "com.badlogicgames.gdx:gdx-bullet-platform:$gdxVersion:natives-ios"
        compile "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-ios"
    }
}

project(":html") {
    apply plugin: "gwt"
    apply plugin: "war"


    dependencies {
        compile project(":core")
        compile "com.badlogicgames.gdx:gdx-backend-gwt:$gdxVersion"
        compile "com.badlogicgames.gdx:gdx:$gdxVersion:sources"
        compile "com.badlogicgames.gdx:gdx-backend-gwt:$gdxVersion:sources"
        compile "com.badlogicgames.gdx:gdx-ai:$aiVersion:sources"
    }
}

project(":core") {
    apply plugin: "java"


    dependencies {
        compile "com.badlogicgames.gdx:gdx:$gdxVersion"
        compile "com.badlogicgames.gdx:gdx-bullet:$gdxVersion"
        compile "com.badlogicgames.gdx:gdx-freetype:$gdxVersion"
        compile "com.badlogicgames.gdx:gdx-ai:$aiVersion"
    }
}

现在桌面项目将编译并运行。安卓还没试过。 ios 项目向我提供有关“依赖项解析失败”的错误消息，我不确定如何修复。我有点好奇为什么安装工具没有生成任何依赖信息。

<小时/>

我刚刚尝试使用最新版本的安装插件再次生成项目，这次成功了。不知道为什么我的依赖项第一次都是空白的。

Answer 1

我也遇到了同样的问题。

尝试在我的计算机上添加第三方扩展时，libgdx 安装程序导致运行时异常。发生异常后，通常显示的常用生成器对话框之一未能显示。

• 我生成了一个新项目，没有尝试添加任何第三方扩展，并且我获得了一个成功的项目，现在可以很好地导入到 eclipse 中。