build fails for v5-beta1 because build folder is missing

When installing v5-beta1 via npm and try to build it by npm run dist some errors occurred. Mostly related because the build/ directory is missing and so the files build-plugins.js and rollup.config.js.

Operating system: Windows 10

Installation:

$ npm install bootstrap@next
$ cd node_modules/bootstrap/
$ npm install
$ npm run dist

Errors:

...

> bootstrap@5.0.0-beta1 js-compile-standalone-esm C:\...\Bootstrap\node_modules\bootstrap
> rollup --environment ESM:true,BUNDLE:false --config build/rollup.config.js --sourcemap

internal/modules/cjs/loader.js:968
  throw err;
  ^

Error: Cannot find module 'C:\...\Bootstrap\node_modules\bootstrap\build\build-plugins.js'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:965:15)
    at Function.Module._load (internal/modules/cjs/loader.js:841:27)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)
    at internal/main/run_main_module.js:17:47 {
  code: 'MODULE_NOT_FOUND',
  requireStack: []
}
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! bootstrap@5.0.0-beta1 js-compile-plugins: `node build/build-plugins.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the bootstrap@5.0.0-beta1 js-compile-plugins script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\dkern\AppData\Roaming\npm-cache\_logs\2021-01-07T13_53_04_468Z-debug.log
[!] Error: Could not resolve entry module (build\rollup.config.js).
Error: Could not resolve entry module (build\rollup.config.js).
    at error (C:\...\Bootstrap\node_modules\bootstrap\node_modules\rollup\dist\shared\rollup.js:5265:30)
    at ModuleLoader.loadEntryModule (C:\...\Bootstrap\node_modules\bootstrap\node_modules\rollup\dist\shared\rollup.js:18470:20)
    at async Promise.all (index 0)

npm ERR! code ELIFECYCLE
npm ERR! errno 1
[!] Error: Could not resolve entry module (build\rollup.config.js).
npm ERR! bootstrap@5.0.0-beta1 js-compile-bundle: `rollup --environment BUNDLE:true --config build/rollup.config.js --sourcemap`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the bootstrap@5.0.0-beta1 js-compile-bundle script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
Error: Could not resolve entry module (build\rollup.config.js).
    at error (C:\...\Bootstrap\node_modules\bootstrap\node_modules\rollup\dist\shared\rollup.js:5265:30)
    at ModuleLoader.loadEntryModule (C:\...\Bootstrap\node_modules\bootstrap\node_modules\rollup\dist\shared\rollup.js:18470:20)
    at async Promise.all (index 0)


npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\dkern\AppData\Roaming\npm-cache\_logs\2021-01-07T13_53_04_525Z-debug.log
npm[!] Error: Could not resolve entry module (build\rollup.config.js).
 ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! bootstrap@5.0.0-beta1 js-compile-standalone: `rollup --environment BUNDLE:false --config build/rollup.config.js --sourcemap`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the bootstrap@5.0.0-beta1 js-compile-standalone script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
Error: Could not resolve entry module (build\rollup.config.js).
    at error (C:\...\Bootstrap\node_modules\bootstrap\node_modules\rollup\dist\shared\rollup.js:5265:30)
    at ModuleLoader.loadEntryModule (C:\...\Bootstrap\node_modules\bootstrap\node_modules\rollup\dist\shared\rollup.js:18470:20)
    at async Promise.all (index 0)


npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\dkern\AppData\Roaming\npm-cache\_logs\2021-01-07T13_53_04_541Z-debug.log
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! bootstrap@5.0.0-beta1 js-compile-standalone-esm: `rollup --environment ESM:true,BUNDLE:false --config build/rollup.config.js --sourcemap`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the bootstrap@5.0.0-beta1 js-compile-standalone-esm script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\dkern\AppData\Roaming\npm-cache\_logs\2021-01-07T13_53_04_558Z-debug.log
ERROR: "js-compile-plugins" exited with 1.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! bootstrap@5.0.0-beta1 js-compile: `npm-run-all --parallel js-compile-*`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the bootstrap@5.0.0-beta1 js-compile script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\dkern\AppData\Roaming\npm-cache\_logs\2021-01-07T13_53_04_579Z-debug.log
ERROR: "js-compile" exited with 1.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! bootstrap@5.0.0-beta1 js: `npm-run-all js-compile js-minify`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the bootstrap@5.0.0-beta1 js script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\dkern\AppData\Roaming\npm-cache\_logs\2021-01-07T13_53_04_601Z-debug.log
ERROR: "js" exited with 1.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! bootstrap@5.0.0-beta1 dist: `npm-run-all --parallel css js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the bootstrap@5.0.0-beta1 dist script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\dkern\AppData\Roaming\npm-cache\_logs\2021-01-07T13_53_04_693Z-debug.log

[carstenfuchs]

I agree with @dkern: https://github.com/twbs/bootstrap/issues/32719#issuecomment-757046759: This is very confusing. I understood the build page exactly as he did.

[dkern]

My suggestion then is to fully remove the “Build Tools” page from the docs! If I as a user want to “build” BS, this is the page I would going for (as I did). And the page even say everything I would expect, when I would want to build BS by myself. If this page is only relevant for people who want to work on the bootstap core files, this should be much more explained. I mean, the page also says:

Bootstrap uses npm scripts for its build system. Our package.json includes convenient methods for working with the framework, including compiling code, running tests, and more.

And:

Learn how to use Bootstrap’s included npm scripts to build

It’s still not clear to me, why this page is in the docs then, if this has nothing directly to do with working with (not for) BS and has nothing to do with customization too. I would expect something like this page to be located on GitHub then. I mean, if the first thing I hear after try to do what the page described is “You are not supposed to use things like that.”, then this page should not be located in the docs too.

Just my point …