我需要覆盖一些 Bootstrap (3.3.7) 的CSS，因此我需要在所有其他样式之前加载 Bootstrap。我了解这样做的方法是在我的应用程序主要的 styles.sass 文档顶部导入它。但是当我通过以下方式执行时：
@import ./bootstrap.css
我理解为：
ERROR in ./~/css-loader!./src/bootstrap.css
Module not found: Error: Can't resolve '../fonts/glyphicons-halflings-regular.eot' in '/Users/bradley/Work/dashboard/src'
@ ./~/css-loader!./src/bootstrap.css 6:4445-4497 6:4520-4572
@ ./~/css-loader!./~/postcss-loader!./~/sass-loader!./src/styles.sass
@ ./src/styles.sass
@ multi ./src/styles.sass
ERROR in ./~/css-loader!./src/bootstrap.css
Module not found: Error: Can't resolve '../fonts/glyphicons-halflings-regular.woff2' in '/Users/bradley/Work/dashboard/src'
@ ./~/css-loader!./src/bootstrap.css 6:4622-4676
@ ./~/css-loader!./~/postcss-loader!./~/sass-loader!./src/styles.sass
@ ./src/styles.sass
@ multi ./src/styles.sass
ERROR in ./~/css-loader!./src/bootstrap.css
Module not found: Error: Can't resolve '../fonts/glyphicons-halflings-regular.woff' in '/Users/bradley/Work/dashboard/src'
@ ./~/css-loader!./src/bootstrap.css 6:4707-4760
@ ./~/css-loader!./~/postcss-loader!./~/sass-loader!./src/styles.sass
@ ./src/styles.sass
@ multi ./src/styles.sass
ERROR in ./~/css-loader!./src/bootstrap.css
Module not found: Error: Can't resolve '../fonts/glyphicons-halflings-regular.ttf' in '/Users/bradley/Work/dashboard/src'
@ ./~/css-loader!./src/bootstrap.css 6:4790-4842
@ ./~/css-loader!./~/postcss-loader!./~/sass-loader!./src/styles.sass
@ ./src/styles.sass
@ multi ./src/styles.sass
ERROR in ./~/css-loader!./src/bootstrap.css
Module not found: Error: Can't resolve '../fonts/glyphicons-halflings-regular.svg' in '/Users/bradley/Work/dashboard/src'
@ ./~/css-loader!./src/bootstrap.css 6:4876-4928
@ ./~/css-loader!./~/postcss-loader!./~/sass-loader!./src/styles.sass
@ ./src/styles.sass
@ multi ./src/styles.sass
这没有起作用，因为我没有将字体文件引入到项目中。
这让我想到，一定有更合适的方法来安装bootstrap。
于是我找到了bootstrap-sass，使用npm install bootstrap-sass --save导入它，然后在styles.sass中导入它：
@import ../node_modules/bootstrap-sass/assets/stylesheets/_bootstrap.scss
我得到的结果是:
ERROR in ./~/css-loader!./~/postcss-loader!./~/sass-loader!./src/styles.sass
Module not found: Error: Can't resolve '../fonts/bootstrap/glyphicons-halflings-regular.eot' in '/Users/bradley/Work/dashboard/src'
@ ./~/css-loader!./~/postcss-loader!./~/sass-loader!./src/styles.sass 6:4253-4315 6:4338-4400
@ ./src/styles.sass
@ multi ./src/styles.sass
ERROR in ./~/css-loader!./~/postcss-loader!./~/sass-loader!./src/styles.sass
Module not found: Error: Can't resolve '../fonts/bootstrap/glyphicons-halflings-regular.woff2' in '/Users/bradley/Work/dashboard/src'
@ ./~/css-loader!./~/postcss-loader!./~/sass-loader!./src/styles.sass 6:4452-4516
@ ./src/styles.sass
@ multi ./src/styles.sass
ERROR in ./~/css-loader!./~/postcss-loader!./~/sass-loader!./src/styles.sass
Module not found: Error: Can't resolve '../fonts/bootstrap/glyphicons-halflings-regular.woff' in '/Users/bradley/Work/dashboard/src'
@ ./~/css-loader!./~/postcss-loader!./~/sass-loader!./src/styles.sass 6:4549-4612
@ ./src/styles.sass
@ multi ./src/styles.sass
ERROR in ./~/css-loader!./~/postcss-loader!./~/sass-loader!./src/styles.sass
Module not found: Error: Can't resolve '../fonts/bootstrap/glyphicons-halflings-regular.ttf' in '/Users/bradley/Work/dashboard/src'
@ ./~/css-loader!./~/postcss-loader!./~/sass-loader!./src/styles.sass 6:4644-4706
@ ./src/styles.sass
@ multi ./src/styles.sass
ERROR in ./~/css-loader!./~/postcss-loader!./~/sass-loader!./src/styles.sass
Module not found: Error: Can't resolve '../fonts/bootstrap/glyphicons-halflings-regular.svg' in '/Users/bradley/Work/dashboard/src'
@ ./~/css-loader!./~/postcss-loader!./~/sass-loader!./src/styles.sass 6:4742-4804
@ ./src/styles.sass
@ multi ./src/styles.sass
难道没有一种简单的方法来解决这个问题吗？