修改css-loader加载的webpack配置时，运行报错：

Failed to compile.

./src/demo.styl (./node_modules/css-loader/dist/cjs.js??ref--5-oneOf-8-1!./node_modules/postcss-loader/src??postcss!./node_modules/resolve-url-loader??ref--5-oneOf-8-3!./node_modules/stylus-loader/dist/cjs.js??ref--5-oneOf-8-4!./src/demo.styl)
TypeError: this.getOptions is not a function

原因：

可能是对应的配置（如：stylus-loader）版本过高，或者没有使用正确的webpack配置语法。

解决办法：

1、对应css-loader版本降级，如：less、stylus等降到合适的版本。

2、修改webpack改为正确的css-loader配置。

如：

            {
              test: stylRegex,
              exclude: stylModuleRegex,
              use: getStyleLoaders(
                {
                  importLoaders: 4,
                  sourceMap: isEnvProduction
                    ? shouldUseSourceMap
                    : isEnvDevelopment,
                  modules: {
                    getLocalIdent: getCSSModuleLocalIdent,
                  },
                },
                'stylus-loader'
              ),
              // Don't consider CSS imports dead code even if the
              // containing package claims to have no side effects.
              // Remove this when webpack adds a warning or an error for this.
              // See https://github.com/webpack/webpack/issues/6571
              sideEffects: true,
            },
            // Adds support for CSS Modules, but using SASS
            // using the extension .module.scss or .module.sass
            {
              test: stylModuleRegex,
              use: getStyleLoaders(
                {
                  importLoaders: 4,
                  sourceMap: isEnvProduction
                    ? shouldUseSourceMap
                    : isEnvDevelopment,
                  modules: {
                    getLocalIdent: getCSSModuleLocalIdent,
                  },
                },
                'stylus-loader'
              ),
            },

或

            {
              test: postcssRegex,
              exclude: postcssModuleRegex,
              use: postcssLoader,
              sideEffects: true,
            },
            {
              test: postcssModuleRegex,

              use: postcssLoader,
            },