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react-native - 无法解析模块 multer

问题描述

在 Android 设备上运行我的 react-native 项目时出现错误。

我已经尝试了很多东西。把node_modules、、clear npm cacheyarn也去掉，用yarn和npm安装，不要解析。

怎么了？

Error: Unable to resolve module `util` from `node_modules/multer/lib/multer-error.js`: util could not be found within the project.

If you are sure the module exists, try these steps:
 1. Clear watchman watches: watchman watch-del-all
 2. Delete node_modules: rm -rf node_modules and run yarn install
 3. Reset Metro's cache: yarn start --reset-cache
 4. Remove the cache: rm -rf /tmp/metro-*

也已经尝试过错误消息中指示的建议。

包.json

{
  "name": "svm",
  "version": "0.0.1",
  "private": true,
  "scripts": {
    "android": "react-native run-android",
    "ios": "react-native run-ios",
    "start": "react-native start",
    "test": "jest",
    "lint": "eslint ."
  },
  "dependencies": {
    "@react-native-community/datetimepicker": "^2.3.2",
    "@react-native-community/masked-view": "^0.1.6",
    "@react-navigation/drawer": "^5.4.0",
    "axios": "^0.19.2",
    "formik": "^2.1.4",
    "moment": "^2.24.0",
    "native-base": "^2.13.8",
    "react": "16.9.0",
    "react-native": "^0.62.2",
    "react-native-elements": "^1.2.7",
    "react-native-ftp": "^1.0.1",
    "react-native-gesture-handler": "^1.5.6",
    "react-native-image-picker": "^2.3.1",
    "react-native-linear-gradient": "^2.5.6",
    "react-native-masked-text": "^1.13.0",
    "react-native-reanimated": "^1.7.0",
    "react-native-safe-area-context": "^0.7.2",
    "react-native-screens": "^2.0.0-beta.2",
    "react-native-sound": "^0.11.0",
    "react-native-vector-icons": "^6.6.0",
    "react-native-youtube": "^2.0.1",
    "react-navigation": "^4.1.1",
    "ssh2-sftp-client": "^5.1.2",
    "styled-components": "^5.0.1",
    "yup": "^0.28.1"
  },
  "devDependencies": {
    "@babel/core": "^7.6.2",
    "@babel/runtime": "^7.6.2",
    "@react-native-community/eslint-config": "^0.0.5",
    "babel-jest": "^24.9.0",
    "eslint": "^6.5.1",
    "jest": "^24.9.0",
    "metro-react-native-babel-preset": "^0.56.0",
    "multer": "^1.4.2",
    "multer-sftp": "^1.1.0",
    "react-test-renderer": "16.9.0"
  },
  "jest": {
    "preset": "react-native"
  }
}

标签： react-nativenpmyarnpkg

解决方案

Multer 被列为开发依赖项。我猜您在测试时已经构建了用于生产的应用程序。所以包没有加载。

将“multer”：“^1.4.2”依赖项从“devDependencies”移动到“dependencies”应该可能会解决它。

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