问题：

使用bootstrap5 utilities api总是失败，查找原因需要引入bootstrap/scss/utilities/api

There is a change in file structure in BS5 (vs. BS4).

The _utilities.scss file now only creates a variable $utilities holding all the … utilities. Another file utilities\_api.scss, when compiled, generates the utility CSS.

解决：

参考：

Bootstrap 5: Can not use utilities