lessLoaderOption.additionalData 不生效

[neewbee]

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复现仓库

https://github.com/neewbee/taro-bug-less-loader-option-mini-lessLoaderOption
小程序基础库: 2.13.1
使用框架: React

复现步骤

npm run build:weapp

期望结果

编译成功

实际结果

> [email protected] build:weapp /Users/neewbee/workspace/taro/myApp
> taro build --type weapp

👽 Taro v3.0.15

生成  工具配置  /Users/neewbee/workspace/taro/myApp/dist/project.config.json

编译  发现入口  src/app.js
编译  发现页面  src/pages/index/index.jsx
🙅   编译失败.

./src/app.less
Module build failed (from ./node_modules/mini-css-extract-plugin/dist/loader.js):
ModuleBuildError: Module build failed (from ./node_modules/less-loader/dist/cjs.js):


@import: "app.@{env}.less";
       ^
Variable @env is undefined
      in /Users/neewbee/workspace/taro/myApp/src/app.less (line 1, column 9)

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] build:weapp: `taro build --type weapp`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] build:weapp script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/neewbee/.npm/_logs/2020-10-26T10_28_30_550Z-debug.log

环境信息

Taro CLI 3.0.15 environment info:
    System:
      OS: macOS 10.14.6
      Shell: 5.3 - /bin/zsh
    Binaries:
      Node: 12.18.2 - ~/.nvm/versions/node/v12.18.2/bin/node
      Yarn: 1.22.10 - ~/.nvm/versions/node/v12.18.2/bin/yarn
      npm: 6.14.5 - ~/.nvm/versions/node/v12.18.2/bin/npm
    npmPackages:
      @tarojs/components: 3.0.15 => 3.0.15
      @tarojs/mini-runner: 3.0.15 => 3.0.15
      @tarojs/react: 3.0.15 => 3.0.15
      @tarojs/runtime: 3.0.15 => 3.0.15
      @tarojs/taro: 3.0.15 => 3.0.15
      @tarojs/webpack-runner: 3.0.15 => 3.0.15
      babel-preset-taro: 3.0.15 => 3.0.15
      eslint-config-taro: 3.0.15 => 3.0.15
      react: ^16.10.0 => 16.14.0

[Smi1e96]

@Chen-jj 建议底层依赖项版本更新时 文档也注明 使用的版本，就比如现在less-loader更新到7版本 less配置文档就已经不合适了
less-loader@5：

less-loader@7：

例如 阻止滚动穿透

发版说明中也标识出来 😄 我一会提个PR修改下文档