错误：jest-haste-map：哈希模块命名冲突：

Question

我创建了一个自定义npm module（将使用xxx代替其名称）并使用手动进行链接npm install。

我非常努力地搜寻：

• [解决方法]打包程序无法从/ Users / node_modules /解析模块
• 错误：jest-haste-map：使用本地依赖项时@providesModule命名冲突

在提出问题之前。如果有人告诉我我的代码或方法有什么问题或代码中的任何错误，我将不胜感激。

当我运行时出现react-native run-android以下错误metro bundler

Error: jest-haste-map: Haste module naming collision:
  Duplicate module name: react-native
  Paths: E:\cdg-native\CDG\node_modules\react-native-XXX\node_modules\react-native\package.json collides with E:\cdg-native\CDG\node_modules\react-native\package.json

This error is caused by `hasteImpl` returning the same name for different files.

我的自定义模块package.json是

{
  "name": "react-native-xxx",
  "version": "1.0.0",
  "description": "Library to render xxx",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [
    "react native xxx"
  ],
  "author": "Firdous Nath",
  "license": "ISC",
  "peerDependencies": {
    "react": "*",
    "react-native": "*"
  },
  "devDependencies": {
    "react": "^16.6.1",
    "react-native": "^0.57.5",
    "babel-cli": "^6.26.0",
    "babel-plugin-transform-class-properties": "^6.24.1",
    "babel-plugin-transform-object-rest-spread": "^6.26.0",
    "babel-plugin-transform-runtime": "^6.23.0",
    "babel-preset-env": "^1.6.1",
    "babel-preset-react": "^6.24.1"
  }
}

index.js 自定义模块的过程非常简单，如下所示

import React from "react";
import { Text } from "react-native";

export default class XXXView extends React.Component {

    render() {
        return (
            <Text> From custom module </Text>
        );
    }
}

我正在使用自定义模块的文件是

import React from "react";
import {StyleSheet, View} from "react-native";
import XXXView from "react-native-xxx"
//import {XXXView} from "react-native-xxx" -> I tried this as well

export default class App extends React.Component {
    render() {
        return (
            <View style={styles.container}>
                <XXXView/>
            </View>
        )
    }
}

const styles = StyleSheet.create({
    container: {
        flex: 1,
        justifyContent: "center",
        alignItems: "center",
        backgroundColor: "#f5fcff"
    }
});

我试过了npm install /absolute/path/to/xxx，它正确链接了模块。正确地说，我可以react-native-xxx在nodemodule目录中看到软件包。我做了所有可能的方法，但是没有任何效果。

我也尝试过但没有成功

• 纱添加/ absolute / path / to / react-native-xxx
• react-native链接react-native-xxx
• react-native运行Android

Answer 1

在根项目中添加 rn-cli.config.js

const blacklist = require('metro-config/src/defaults/blacklist');
module.exports = {
 resolver: {
    blacklistRE: blacklist([
        /node_modules\/.*\/node_modules\/react-native\/.*/,
    ])
 },
};

看到这个问题

希望对你有帮助

Answer 2

您收到的错误表明您有两个react-native依赖项。一个在您的主项目中，一个在您的 xxx 模块中，从而在它们之间产生冲突package.json。似乎如果您从本地路径安装软件包，它会复制其node_modules目录。

由于您react-native的自定义模块中已经存在对等依赖项package.json，请尝试删除E:\cdg-native\CDG\node_modules\react-native-XXX\node_modules，这应该可以解决冲突。