Failed to build DependencyGraph: @providesModule naming collision:

错误提示

> demo@0.0.1 start /Users/holoto/WebstormProjects/demo
> node node_modules/react-native/local-cli/cli.js start

 ┌────────────────────────────────────────────────────────────────────────────┐
 │  Running packager on port 8081.                                            │
 │                                                                            │
 │  Keep this packager running while developing on any JS projects. Feel      │
 │  free to close this tab and run your own packager instance if you          │
 │  prefer.                                                                   │
 │                                                                            │
 │  https://github.com/facebook/react-native                                  │
 │                                                                            │
 └────────────────────────────────────────────────────────────────────────────┘
Looking for JS files in
   /Users/holoto/WebstormProjects/demo

[3:39:16 PM] <START> Building Dependency Graph
[3:39:16 PM] <START> Crawling File System
[Hot Module Replacement] Server listening on /hot

React packager ready.

[3:39:18 PM] <END>   Crawling File System (1203ms)
[3:39:18 PM] <START> Building in-memory fs for JavaScript
[3:39:18 PM] <END>   Building in-memory fs for JavaScript (223ms)
[3:39:18 PM] <START> Building in-memory fs for Assets
[3:39:18 PM] <END>   Building in-memory fs for Assets (140ms)
[3:39:18 PM] <START> Building Haste Map
[3:39:18 PM] <START> Building (deprecated) Asset Map
[3:39:18 PM] <END>   Building (deprecated) Asset Map (99ms)
Failed to build DependencyGraph: @providesModule naming collision:
  Duplicate module name: String.prototype.es6
  Paths: /Users/holoto/WebstormProjects/demo/node_modules/react-native-router/node_modules/react-native/packager/react-packager/src/DependencyResolver/haste/polyfills/String.prototype.es6.js collides with /Users/holoto/WebstormProjects/demo/node_modules/react-native/packager/react-packager/src/Resolver/polyfills/String.prototype.es6.js

This error is caused by a @providesModule declaration with the same name accross two different files.
Error: @providesModule naming collision:
  Duplicate module name: String.prototype.es6
  Paths: /Users/holoto/WebstormProjects/demo/node_modules/react-native-router/node_modules/react-native/packager/react-packager/src/DependencyResolver/haste/polyfills/String.prototype.es6.js collides with /Users/holoto/WebstormProjects/demo/node_modules/react-native/packager/react-packager/src/Resolver/polyfills/String.prototype.es6.js

This error is caused by a @providesModule declaration with the same name accross two different files.
    at HasteMap._updateHasteMap (/Users/holoto/WebstormProjects/demo/node_modules/node-haste/lib/DependencyGraph/HasteMap.js:162:15)
    at /Users/holoto/WebstormProjects/demo/node_modules/node-haste/lib/DependencyGraph/HasteMap.js:127:25

npm ERR! Darwin 15.5.0
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "start"
npm ERR! node v6.2.1
npm ERR! npm  v3.9.3
npm ERR! code ELIFECYCLE
npm ERR! demo@0.0.1 start: `node node_modules/react-native/local-cli/cli.js start`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the demo@0.0.1 start script 'node node_modules/react-native/local-cli/cli.js start'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do,this is most likely a problem with the demo package,npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node node_modules/react-native/local-cli/cli.js start
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs demo
npm ERR! Or if that isn't available,you can get their info via: npm ERR! npm owner ls demo npm ERR! There is likely additional logging output above. npm ERR! Please include the following file with any support request: npm ERR! /Users/holoto/WebstormProjects/demo/npm-debug.log

错误原因

react-native-router自带了一个react-native
在目录node_modules/react-native-router/node_modules/react-native

解决方案

删除react-native-router的react-native目录

bash在项目目录下执行

rm -R node_modules/react-native-router/node_modules/react-native

参考

https://github.com/facebook/react-native/issues/3558

（编辑：李大同）

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