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node自带的fs无法使用。Can't resolve 'fs' in... #1668

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rainyf opened this issue Dec 25, 2018 · 3 comments
Closed

node自带的fs无法使用。Can't resolve 'fs' in... #1668

rainyf opened this issue Dec 25, 2018 · 3 comments

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@rainyf
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rainyf commented Dec 25, 2018

问题描述
[问题描述:站在其它人的角度尽可能清晰地、简洁地把问题描述清楚]

复现步骤
[复现问题的步骤]
无论何处 引入var fs = require('fs')。或者import fs from 'fs'也没有用
都会提示

第一种
var fs = require('fs')
./node_modules/fs.realpath/index.js
Module not found: Can't resolve 'fs' in '/Users/guanliyuan/Documents/TowerFile/RenMinWenLvTaro/node_modules/fs.realpath'

第二种
import fs from 'fs'
./.temp/state/helpers/form_data.js
Module not found: Can't resolve 'fs' in '/Users/guanliyuan/Documents/TowerFile/RenMinWenLvTaro/.temp/state/helpers'

期望行为

期望大佬能告知如何引入node自带的'fs'
我需要解决ios11.2上Formdata是undefined的问题。急需这个fs
非常感谢

报错信息

[这里请贴上你的完整报错截图或文字]

系统信息

Taro v1.2 及以上版本已添加 taro info 命令,方便大家查看系统及依赖信息,运行该命令后将结果贴下面即可。

  • 操作系统: [e.g. Windows 10]
  • Taro 版本 [e.g. v.0.0.64]
  • Node.js 版本 [e.g. v9.0.0]
  • 报错平台 [h5, weapp]

补充信息
[可选]
[根据你的调查研究,出现这个问题的原因可能在哪里?]

@taro-bot
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taro-bot bot commented Dec 25, 2018

欢迎提交 Issue~

如果你提交的是 bug 报告,请务必遵循 Issue 模板的规范,尽量用简洁的语言描述你的问题,最好能提供一个稳定简单的复现。🙏🙏🙏

如果你的信息提供过于模糊或不足,或者已经其他 issue 已经存在相关内容,你的 issue 有可能会被关闭。

Good luck and happy coding~

@yuche
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yuche commented Dec 25, 2018

几乎所有 node 的包都无法使用,你只能用在浏览器可以跑到包

@Jeff-Tian
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Jeff-Tian commented Nov 3, 2021

请问如何 mock 这些 node 包?

试了用 webpack 的 resolve.alias,以及 tsconfig.json 配置 paths 来指向 mock 都不成功


module.exports = merge => {
  const final = merge({
    resolve: {
      alias: {
        fs: path.join(__dirname, '../src/mocks/fs.ts')
      }
    },
    node: {
      fs: 'empty',
    }
    }, config,
    process.env.NODE_ENV === 'development' ?
      require('./dev') :
      require('./prod'),
  );

  console.log('final = ', final)
  return final
}
   "paths": {
      "fs": ["./src/mocks/fs.ts"]
    }

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