Introduced after installing bootstrap with npm, the style is invalid

clipboard.png

clipboard.png

install bootstrap style with npm cannot be displayed properly, and the introduced path is correct. I don"t know what"s going on

Mar.12,2021

does not need to be introduced by import


brothers can introduce it directly in main.js


.
, which is not quoted in npm bootstrap, is referenced directly in the .js of your configuration file


has just been checked, and the default class
navbar-default
has been removed from bootstrap4. For more information, please refer to the official documentation to update the log
https://github.com/twbs/boots.
bootstrap3. You can use
https://github.com/twbs/boots.

in the update log.
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