.make-container-max-widths() no longer available as of bootstrap 4.5.1

[nderise]

Describe the bug
With the 4.5.1 version of bootstrap, yarn start fails when installing Spartacus using schematics with the following error
ERROR in ./src/styles.scss (./node_modules/css-loader/dist/cjs.js??ref--13-1!./node_modules/postcss-loader/src??embedded!./node_modules/sass-loader/dist/cjs.js??ref--13-3!./src/styles.scss) Module build failed (from ./node_modules/sass-loader/dist/cjs.js): SassError: Undefined mixin. ╷ 7 │ @include make-container-max-widths(); │ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

To Reproduce
Steps to reproduce the behavior:
1.$ ng new mystore --style=scss
2.$ cd mystore
3.$ ng add @spartacus/schematics
4.$ yarn start

Expected behavior
Server starts, listening on port 4200

Desktop (please complete the following information):

• OS: darwin x64
• Browser : cli
• Version 2.0.6

Additional context
One of the commits (#30969) in the 4.5.1 bootstrap release, removes the mixin mentioned above which is called explicitly in container.scss within @spartacus/styles.
Specifically requesting 4.5.0 in package.json circumvents the problem for now

[Xymmer]

related to #8498?

[nderise]

Yes. Same issue. Bootstrap has fixed it and doesn't plan to remove this mixin for version 4. I think this should probably be closed unless some action needs to be taken to document that specifically version 4.5.1 of bootstrap will cause build errors in Spartacus

[Xymmer]

thanks! W recommend 4.2.1 (not 4.5.1) and it looks like they fixed this in 4.5.2. we're reverting our hard-coding of 4.2.1 for future releases, and we also will remove our use of deprecation function (see #8498).