I'm trying to use yarn for my latest project. How to install bootstrap 4 - libsass libraries using yarn
6 Answers
Attention:
I just realized a difference between the installations with npm install
and yarn
.
Here are the two commands I used:
yarn add bootstrap@4.0.0-alpha.6 --dev
npm install bootstrap@4.0.0-alpha.6 --save-dev
The correct/current version of bootstrap 4.0.0-alpha.6 contains this file:
/node_modules/bootstrap/scss/_tags.scss
Installed with npm, this file exists as expected. But installed via yarn, this file is missing. Even if changing bootstrap@^4.0.0-alpha.6
to bootstrap@4.0.0-alpha.6
in package.json
didn't fix this issue.

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actually see the last version at the github page https://github.com/twbs/bootstrap/releases – Serhii Polishchuk Jan 10 '18 at 16:19
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Is bootstrap intended to be a development dependency (`--dev`)? The resources are needed at runtime. – rgov Jun 19 '20 at 17:52
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@rgov I would say no because the stylings need to be there in production mode as well – Sam Aug 31 '21 at 21:41
yarn add bootstrap@4
installs the latest bootstrap 4 version (4.6.0 at aug/'21)
And you can always use
yarn add your_package@^
To view all the versions that are available

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Just run:
yarn add bootstrap@4.0.0-alpha.6
yarn add gulp-sass --save-dev

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To find the most current installation instructions, see github repo:
https://github.com/twbs/bootstrap
As of the time of this posting, instructions for installing the latest beta version of Bootstrap v4 via yarn is:
yarn add bootstrap@4.0.0-beta.2

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Bootstrap 4 is now in beta, so you can do the following:
yarn add bootstrap@4.0.0-beta

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