解决方案:
根据构建报错信息 "31.0.0版本的构建工具缺少了DX文件" 发现，31.0.0版本的构建工具缺少了"dx.bat"和"dx.jar"这两文件，正确的做法就是复制对应路径的"d8.bat"和"d8.jar"这两文件创建副本，并分别改名为"dx.bat"和"dx.jar"【该方法同样适用于34.0.0版本问题】，"d8.bat"和"d8.jar"这两文件的大致路径为：
C:\Users\user\AppData\Local\Android\Sdk\build-tools\31.0.0\d8.bat => dx.bat C:\Users\user\AppData\Local\Android\Sdk\build-tools\31.0.0\lib\d8.jar => dx.jar
参考链接：https://blog.csdn.net/weixin_41579872/article/details/131397348
- Installed corrupted revision Build Toolsinstalled corrupted revision build installed corrupted revision android windows-build-tools visual-cpp-build-tools microsoft visual-cpp-build-tools quot visualstudio windows-build-tools node_modules completed reifynode revision revision 071.00 hana sap tortoisesvn revision update to corrupt