libGDX构建HTML端报错：Failed to notify project evaluation listener

错误现象 #

执行gradle html:dist或gradle html:superDev时触发以下错误：

Configure project :html
GWT version is < 2.5 -> additional dependencies are not added.

Deprecated Gradle features were used in this build, making it incompatible with Gradle 9.0.

You can use '--warning-mode all' to show the individual deprecation warnings and determine if they come from your own scripts or plugins.

See https://docs.gradle.org/8.1/userguide/command_line_interface.html#sec:command_line_warnings

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':html'.
Failed to notify project evaluation listener.
org/gradle/api/internal/artifacts/dsl/dependencies/DependencyFactory$ClassPathNotation

甚至执行gradle html:clean也会触发该错误。更新Gradle版本后问题更严重，需注释HTML模块的构建配置才能正常运行gradle desktop:run。

当前配置 #

根目录build.gradle依赖：

dependencies {
    classpath 'com.badlogicgames.gdx:gdx-tools:1.11.0'
    classpath 'org.wisepersist:gwt-gradle-plugin:1.1.19'
    classpath 'org.gretty:gretty:3.0.7'
    classpath 'com.mobidevelop.robovm:robovm-gradle-plugin:2.3.16'
    classpath 'com.android.tools.build:gradle:3.6.1'
    classpath 'com.google.gms:google-services:4.3.2'
}

根目录build.gradle全局变量：

allprojects {
apply plugin: "eclipse"

version = '1.0'
ext {
    appName = "tileShipGame"
    gdxVersion = '1.11.0'
    roboVMVersion = '2.3.16'
    box2DLightsVersion = '1.5'
    ashleyVersion = '1.7.4'
    aiVersion = '1.8.2'
    gdxControllersVersion = '2.2.1'
}

HTML模块html/build.gradle配置：

gwt {
gwtVersion='1.11.0' // Should match the gwt version used for building the gwt backend
...
}

已尝试的操作 #

• 对齐根目录与HTML模块的gdxVersion和gwtVersion，但新增了GWT version is < 2.5 -> additional dependencies are not added提示，不清楚2.5版本来源
• 搜索到的解决方案多针对Android Studio，与HTML构建无关
• 创建全新libGDX项目，移除mavenLocal()仓库后仍出现相同错误

解决步骤 #

1. 修正GWT版本配置：
   libGDX 1.11.0对应的GWT版本是2.9.0，而非1.11.0。在html/build.gradle中修改：

   gwt {
       gwtVersion = '2.9.0'
       // 保留其他原有配置
   }
   

   同时在根目录build.gradle的ext块中新增gwtVersion变量，统一管理：

   ext {
       // 原有变量...
       gwtVersion = '2.9.0'
   }
   

   然后在html/build.gradle中引用该变量：gwtVersion = rootProject.ext.gwtVersion

2. 适配Gradle版本与插件兼容性：
   当前使用的org.wisepersist:gwt-gradle-plugin:1.1.19兼容Gradle 6.x-7.x，若你升级到了Gradle 8.x，需将插件版本升级到1.1.20+，同时org.gretty:gretty需升级到**4.0.0+**以适配Gradle 8。

3. 清理并重新构建：
   执行以下命令清理缓存并重新构建：

   ./gradlew clean
   ./gradlew html:superDev
   

4. 检查依赖冲突：
   若仍有问题，运行./gradlew html:dependencies查看GWT相关依赖的版本，确保没有旧版本的GWT依赖被引入，如有冲突可通过exclude排除：

   dependencies {
       implementation("com.badlogicgames.gdx:gdx-backend-gwt:$gdxVersion") {
           exclude group: 'com.google.gwt'
       }
       implementation "com.google.gwt:gwt-user:$gwtVersion"
       implementation "com.google.gwt:gwt-dev:$gwtVersion"
   }
   

内容的提问来源于stack exchange，提问作者Noah Crosby