错误：要导入的文件未找到或不可读：../ bolt_components /

Question

我正在研究bootstrap 4。但我会尝试导入bootstrap.scss，但它不起作用。

错误： -

body:before {
white-space: pre;
font-family: monospace;
content: "Error: File to import not found or unreadable: 
../bower_components/bootstrap-sass-
official/assets/stylesheets/_bootstrap.scss.\A Load path: C:/Users/web-
design/Desktop/testing2/sass\A         on line 1 of C:\Users\web-
design\Desktop\testing2\sass\app.scss\A \A 1: @import 
\"../bower_components/bootstrap-sass-
official/assets/stylesheets/_bootstrap.scss\";"; }