javascript - Rollup.js Unresolved 依赖项

我正在尝试将rollup.js合并到项目中。目前，我在控制台中收到下面提供的警告( Unresolved 依赖项)，我不确定为什么或如何解决它:

'fs' is imported by node_modules\filereader\FileReader.js, but could not be resolved – treating it as an external dependency

'fs' is imported by  commonjs-external:fs, but could not be resolved – treating it as an external dependency

preferring built-in module 'punycode' over local alternative at 'C:\Users\Ryan\OneDrive\Projects\Custom Coding\Zapier\Ryan Test\node_modules\punycode\punycode.js', pass 'preferBuiltins: false' to disable this behavior or 'preferBuiltins: true' to disable this warning

preferring built-in module 'punycode' over local alternative at 'C:\Users\Ryan\OneDrive\Projects\Custom Coding\Zapier\Ryan Test\node_modules\punycode\punycode.js', pass 'preferBuiltins: false' to disable this behavior or 'preferBuiltins: true' to disable this warning

这是需要FileReader和https的test.js脚本:

var FileReader = require('filereader');
var https = require('https');

最后，执行创建捆绑包的rollup.config.js文件:

var rollup = require('rollup');

var commonjs = require('rollup-plugin-commonjs');
var nodeResolve = require('rollup-plugin-node-resolve');
var globals = require('rollup-plugin-node-globals');
var builtins = require('rollup-plugin-node-builtins');

// build bundle
rollup
  .rollup({
    entry: 'test.js',
    plugins: [
      nodeResolve(),
      commonjs(),
      globals(),
      builtins()
    ]
  })
  .then(bundle => bundle.write({
    dest: 'rollupBundle/bundle.js',
    format: 'cjs'
  }))
  .catch(err => console.log(err.stack));

最佳答案

CLI将生成更多有用的警告-如果将配置文件更新为使用标准格式，则可以使用rollup -c代替，它通常会为您提供帮助诊断问题的URL。
这是一个配置文件，其中包含必要的更改以抑制这些警告:

import commonjs from 'rollup-plugin-commonjs';
import nodeResolve from 'rollup-plugin-node-resolve';
import globals from 'rollup-plugin-node-globals';
import builtins from 'rollup-plugin-node-builtins';

export default {
  entry: 'test.js',
  dest: 'rollupBundle/bundle.js',
  format: 'cjs',
  external: [ 'fs' ], // tells Rollup 'I know what I'm doing here'
  plugins: [
    nodeResolve({ preferBuiltins: false }), // or `true`
    commonjs(),
    globals(),
    builtins()
  ]
};

更新:现在，“官方”汇总插件位于npm上的@rollup命名空间下，如果安装上述两个版本，则会收到“不推荐使用npm WARN”消息，因此请安装较新的版本:

npm install @rollup/plugin-commonjs --save-dev
npm install @rollup/plugin-node-resolve --save-dev

然后像这样使用它们:

import commonjs from '@rollup/plugin-commonjs';
import { nodeResolve } from '@rollup/plugin-node-resolve';

关于javascript - Rollup.js Unresolved 依赖项，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/41495596/