Minecraft 1.12.2 Forge模组开发Gradle依赖查找失败求助

问题重现 #

开发1.12.2版本Forge模组时，执行构建抛出以下错误：

> Task :compileJava FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Could not resolve all files for configuration ':compileClasspath'.
> Could not find net.minecraftforge:forge:1.12.2-14.23.5.2860_mapped_snapshot_20171003-1.12.
  Searched in the following locations:
    - https://maven.minecraftforge.net/net/minecraftforge/forge/1.12.2-14.23.5.2860_mapped_snapshot_20171003-1.12/forge-1.12.2-14.23.5.2860_mapped_snapshot_20171003-1.12.pom
    - https://maven.minecraftforge.net/net/minecraftforge/forge/1.12.2-14.23.5.2860_mapped_snapshot_20171003-1.12/forge-1.12.2-14.23.5.2860_mapped_snapshot_20171003-1.12.jar
    - file:/C:/Users/techi/.gradle/caches/forge_gradle/bundeled_repo/net/minecraftforge/forge/1.12.2-14.23.5.2860_mapped_snapshot_20171003-1.12/forge-1.12.2-14.23.5.Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

Deprecated Gradle features were used in this build, making it incompatible with Gradle 5.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/4.9/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 1m 37s
1 actionable task: 1 executed

已排查build.gradle配置、确认MDK完整性、刷新依赖，但问题未解决。

解决步骤 #

• 校验依赖版本完整性：打开项目根目录的build.gradle，找到minecraft代码块，确认version和mappings配置为完整的合法值：

  minecraft {
      version = "1.12.2-14.23.5.2860"
      mappings = "snapshot_20171003"
      // 其他配置项...
  }
  

  错误日志中依赖版本号存在截断，需确保配置无拼写错误或格式缺失。

• 清理Gradle缓存并重建依赖：

  1. 删除本地缓存目录：C:/Users/techi/.gradle/caches/forge_gradle/bundeled_repo
  2. 在项目根目录执行命令：gradlew clean build --refresh-dependencies，强制清理构建缓存并重新拉取所有依赖。

• 重新生成MDK项目：若上述步骤无效，下载对应版本的Forge MDK（1.12.2-14.23.5.2860），解压后将模组代码迁移至新项目中，避免原项目配置文件损坏。

• 检查网络与代理配置：确认网络可正常访问Maven仓库，若使用代理，在gradle.properties中添加代理配置：

  systemProp.http.proxyHost=你的代理地址
  systemProp.http.proxyPort=代理端口
  systemProp.https.proxyHost=你的代理地址
  systemProp.https.proxyPort=代理端口
  

内容的提问来源于stack exchange，提问作者eepyfemboi