react-native 无法解析模块“warnOnce" [英] react-native Unable to resolve module 'warnOnce'

问题描述

我的英语有点生疏，很抱歉.

my English is little rusty, I'm sorry for that.

我在 iOS 模拟器上启动 react-native 项目时出现错误.

I have an error at the moment when I am starting react-native project on the iOS Simulator.

为了排除与我的代码有任何冲突，我开始了一个新项目

To rule out any conflict with my code, I started a new project

react-native init demo

react-native start 

react-native run-ios --simulator="iPhone 6"

现在是我收到消息错误

Loading dependency graph, done.
error: bundling failed: Error: Unable to resolve module `warnOnce` from `node_modules/react-native/Libraries/react-native/react-native-implementation.js`: warnOnce 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-*
    at ModuleResolver.resolveDependency (/usr/local/lib/node_modules/react-native/node_modules/metro/src/node-haste/DependencyGraph/ModuleResolution.js:186:15)
    at ResolutionRequest.resolveDependency (/usr/local/lib/node_modules/react-native/node_modules/metro/src/node-haste/DependencyGraph/ResolutionRequest.js:52:18)
    at DependencyGraph.resolveDependency (/usr/local/lib/node_modules/react-native/node_modules/metro/src/node-haste/DependencyGraph.js:282:16)
    at Object.resolve (/usr/local/lib/node_modules/react-native/node_modules/metro/src/lib/transformHelpers.js:267:42)
    at /usr/local/lib/node_modules/react-native/node_modules/metro/src/DeltaBundler/traverseDependencies.js:426:31
    at Array.map (<anonymous>)
    at resolveDependencies (/usr/local/lib/node_modules/react-native/node_modules/metro/src/DeltaBundler/traverseDependencies.js:423:18)
    at /usr/local/lib/node_modules/react-native/node_modules/metro/src/DeltaBundler/traverseDependencies.js:275:33
    at Generator.next (<anonymous>)
    at asyncGeneratorStep (/usr/local/lib/node_modules/react-native/node_modules/metro/src/DeltaBundler/traverseDependencies.js:87:24)

我需要知道是否有人遇到同样的问题以及如何解决?

I need to know if anybody have same problem and how fix it ?

我的本​​机版本是 0.61.5

My react-native version is 0.61.5

package.json

package.json

{
  "name": "demo",
  "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": "16.9.0",
    "react-native": "0.61.4"
  },
  "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",
    "react-test-renderer": "16.9.0"
  },
  "jest": {
    "preset": "react-native"
  }
}

感谢您的提前.

推荐答案

我找到了解决方案.

我使用的是 react-native-cli.

I was using react-native-cli.

上一篇 react-native 文档中的建议报告，告知 react-native-cli 可能会导致意外问题.

An advice report in the last react-native documentation , inform that react-native-cli may cause unexpected issues.

我删除了 react-native-cli，现在我正在使用

I removed react-native-cli and now I'm using

npx react-native ...

谢谢你，我为我糟糕的英语感到抱歉.

Thank you and I'm sorry for my horrible English.

这篇关于react-native 无法解析模块“warnOnce"的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！