[Webpack 5] Can't find module from library which was compiled via webpack 5

[pustovalov]

Bug report

What is the current behavior?

webpack 5

config:

  output: {
    filename: 'index.js',
    libraryTarget: 'commonjs2',
	library: 'talkable-ui-kit',
  },

import { UIStaffBadge } from 'talkable-ui-kit'

console.log('UIStaffBadge', UIStaffBadge);

UIStaffBadge undefined

dist output

module.exports["talkable-ui-kit"]=function(){var e={310:function(e,t,n){"use strict";n.r(t),n.d(t,{BodyD:function(){return va},BodyM:function(){return ga},BodyS:function(){return ba},H1:function(){return pa},H2

What is the expected behavior?

webpack 4

config:

  output: {
    filename: 'index.js',
    libraryTarget: 'commonjs2',
	library: 'talkable-ui-kit',
  },

import { UIStaffBadge } from 'talkable-ui-kit'

console.log('UIStaffBadge', UIStaffBadge);

UIStaffBadge ƒ dt(e) {

dist output:

module.exports=function(e){var t={};function n(a){if(t[a])return t[a].exports;var r=t[a]={i:a,l:!1,exports:{}};return e[a].call(r.exports,r,r.exports,n)

Other relevant information:
webpack version: 5.2.0
Node.js version: 14.14.0
Operating System: macOS
Additional tools: yarn 1.22.10

UPD:

remove library field fixed that, updated config:

  output: {
    filename: 'index.js',
    libraryTarget: 'commonjs2',
  },

the documentation says:
Note that output.library is omitted, thus it is not required for this particular output.libraryTarget.
https://webpack.js.org/configuration/output/#module-definition-systems

Looks like library key should be ignored if commonjs2 is used

[pustovalov]

The documentation has been updated in this PR: webpack/webpack.js.org#4222