'react-native init' 错误：npm ERR！命令失败：git fetch -a origin答案

【问题标题】：'react-native init' error : npm ERR! Command failed: git fetch -a origin'react-native init' 错误：npm ERR！命令失败：git fetch -a origin
【发布时间】：2015-10-18 04:54:55
【问题描述】：

当我尝试通过 react-native init awesomeProject 初始化 react-native 项目时发生错误：

Installing react-native package from npm...
`npm install --save react-native` failed

然后我手动运行这个 npm 命令，错误看起来像发生在这里：

npm verb afterAdd /Users/mc-zone/.npm/joi/6.9.1/package/package.json not in flight; writing
npm verb afterAdd /Users/mc-zone/.npm/joi/6.9.1/package/package.json written
npm ERR! git fetch -a origin (git://github.com/facebook/react.git) fatal: Unable to create temporary file '/Users/mc-zone/.npm/_git-remotes/git-github-com-facebook-react-git-baa2986b/./objects/pack/tmp_pack_XXXXXX': Permission denied
npm ERR! git fetch -a origin (git://github.com/facebook/react.git) fatal: index-pack failed
npm verb about to build /Users/mc-zone/_dev/rn/node_modules/react-native
npm verb unlock done using /Users/mc-zone/.npm/_locks/react-native-ce52a7d7697a2d98.lock for /Users/mc-zone/_dev/rn/node_modules/react-native
npm verb stack Error: Command failed: git fetch -a origin
npm verb stack fatal: Unable to create temporary file '/Users/mc-zone/.npm/_git-remotes/git-github-com-facebook-react-git-baa2986b/./objects/pack/tmp_pack_XXXXXX': Permission denied
npm verb stack fatal: index-pack failed
npm verb stack
npm verb stack     at ChildProcess.exithandler (child_process.js:203:12)
npm verb stack     at emitTwo (events.js:87:13)
npm verb stack     at ChildProcess.emit (events.js:172:7)
npm verb stack     at maybeClose (internal/child_process.js:818:16)
npm verb stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:211:5)
npm verb cwd /Users/mc-zone/_dev/rn
npm ERR! Darwin 14.3.0
npm ERR! argv "/Users/mc-zone/.nvm/versions/node/v4.2.1/bin/node" "/Users/mc-zone/.nvm/versions/node/v4.2.1/bin/npm" "install" "react-native" "--save"
npm ERR! node v4.2.1
npm ERR! npm  v2.14.7
npm ERR! code 128

npm ERR! Command failed: git fetch -a origin
npm ERR! fatal: Unable to create temporary file '/Users/mc-zone/.npm/_git-remotes/git-github-com-facebook-react-git-baa2986b/./objects/pack/tmp_pack_XXXXXX': Permission denied
npm ERR! fatal: index-pack failed
npm ERR!
npm ERR!
npm ERR! If you need help, you may report this error at:
npm ERR!     <https://github.com/npm/npm/issues>
npm verb exit [ 1, true ]

好像是权限问题，我也用sudo chown -R $USER ~/.npm还是不行。

而这个npm install 是由react-native-cli 执行的，所以我无法将sudo 命令添加到npm（sudo react-native init 仍然无法工作）

我该如何解决这个问题？

========

其他信息：

系统：Mac OS X 10.10.3

npm在安装node时由nvm安装。

nvm 由brew 安装。

$ npm -v 
2.14.7
$ node -v
v4.2.1

还有我的文件夹权限（想在_dev初始化应用）：

drwxrwxrwx  521 mc-zone  staff   17714 10 17 19:20 .npm
-rw-------    1 mc-zone  staff      56 10 17 17:01 .npmrc
drwxrwxrwx    5 mc-zone  staff     170 10 17 16:57 .nvm
drwxrwxrwx    4 mc-zone  staff     136 10 16 23:15 _dev

【问题讨论】：

标签： npm react-native

【解决方案1】：

我遇到了同样的问题，并通过授予或获取已安装文件夹中的权限来解决它：

➜  ~  sudo chmod 774 ProjectFolder/*
➜  ~  sudo chown Username ProjectFolder/*
➜  ~  sudo chmod 774 .babel.json 
➜  ~  sudo chown Username .babel.json

【讨论】：

【解决方案2】：

这是创建新项目 CRNA 并从 expo 运行的几个步骤。

第 1 步：如果您已安装 crna，请跳过此步骤。
npm install -g create-react-native-app

第 2 步：create-react-native-app AwesomeProject

第三步：cd AwesomeProject

第四步：npm start 或 yarn start

享受

【讨论】：