Windows 7， npm install -g react-native-cli 给出了"Cannot read property 'path' of null"

Question

我正在开始启动启动react react本地教程，从这里遵循官方文档https://facebook.github.io/react-native/docs/docs/getting-started.html

1. 完成安装Choco，Nodejs和Python没有任何麻烦
2. 在执行NPM安装-g react-native-cli时，我得到"无法读取null的属性'路径"（下面的完整错误）

npm install -g react-native-cli

C:Windowssystem32>npm install -g react-native-cli
npm ERR! Windows_NT 6.1.7601
npm ERR! argv "C:\Program Files\nodejs\node.exe" "C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js" "install" "-g" "react-native-cli"
npm ERR! node v7.6.0
npm ERR! npm  v4.1.2
npm ERR! Cannot read property 'path' of null
npm ERR!
npm ERR! If you need help, you may report this error at:
npm ERR!     <https://github.com/npm/npm/issues>
npm ERR! Please include the following file with any support request:
npm ERR!     C:Windowssystem32npm-debug.log
C:Windowssystem32>

npm-debug.log

0 info it worked if it ends with ok
1 verbose cli [ 'C:\Program Files\nodejs\node.exe',
1 verbose cli   'C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js',
1 verbose cli   'install',
1 verbose cli   '-g',
1 verbose cli   'react-native-cli' ]
2 info using npm@4.1.2
3 info using node@v7.6.0
4 silly loadCurrentTree Starting
5 silly install loadCurrentTree
6 silly install readGlobalPackageData
7 silly fetchPackageMetaData react-native-cli
8 silly fetchNamedPackageData react-native-cli
9 silly mapToRegistry name react-native-cli
10 silly mapToRegistry using default registry
11 silly mapToRegistry registry http://localhost:4873/
12 silly mapToRegistry data Result {
12 silly mapToRegistry   raw: 'react-native-cli',
12 silly mapToRegistry   scope: null,
12 silly mapToRegistry   escapedName: 'react-native-cli',
12 silly mapToRegistry   name: 'react-native-cli',
12 silly mapToRegistry   rawSpec: '',
12 silly mapToRegistry   spec: 'latest',
12 silly mapToRegistry   type: 'tag' }
13 silly mapToRegistry uri http://localhost:4873/react-native-cli
14 verbose request uri http://localhost:4873/react-native-cli
15 verbose request no auth needed
16 info attempt registry request try #1 at 4:37:49 PM
17 verbose request using bearer token for auth
18 verbose request id 91c9343245cf6325
19 http request GET http://localhost:4873/react-native-cli
20 info retry will retry, error on last attempt: Error: connect ECONNREFUSED 127.0.0.1:4873
21 info attempt registry request try #2 at 4:38:00 PM
22 verbose request using bearer token for auth
23 http request GET http://localhost:4873/react-native-cli
24 info retry will retry, error on last attempt: Error: connect ECONNREFUSED 127.0.0.1:4873
25 info attempt registry request try #3 at 4:39:01 PM
26 verbose request using bearer token for auth
27 http request GET http://localhost:4873/react-native-cli
28 silly fetchPackageMetaData Error: connect ECONNREFUSED 127.0.0.1:4873
28 silly fetchPackageMetaData     at Object.exports._errnoException (util.js:1028:11)
28 silly fetchPackageMetaData     at exports._exceptionWithHostPort (util.js:1051:20)
28 silly fetchPackageMetaData     at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1090:14)
28 silly fetchPackageMetaData  error for react-native-cli { Error: connect ECONNREFUSED 127.0.0.1:4873
28 silly fetchPackageMetaData     at Object.exports._errnoException (util.js:1028:11)
28 silly fetchPackageMetaData     at exports._exceptionWithHostPort (util.js:1051:20)
28 silly fetchPackageMetaData     at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1090:14)
28 silly fetchPackageMetaData   code: 'ECONNREFUSED',
28 silly fetchPackageMetaData   errno: 'ECONNREFUSED',
28 silly fetchPackageMetaData   syscall: 'connect',
28 silly fetchPackageMetaData   address: '127.0.0.1',
28 silly fetchPackageMetaData   port: 4873 }
29 silly rollbackFailedOptional Starting
30 verbose stack TypeError: Cannot read property 'path' of null
30 verbose stack     at Installer.rollbackFailedOptional (C:Program Filesnodejsnode_modulesnpmlibinstall.js:511:29)
30 verbose stack     at Array.<anonymous> (C:Program Filesnodejsnode_modulesnpmnode_modulesslidelibbind-actor.js:15:8)
30 verbose stack     at LOOP (C:Program Filesnodejsnode_modulesnpmnode_modulesslidelibchain.js:15:14)
30 verbose stack     at C:Program Filesnodejsnode_modulesnpmnode_modulesslidelibchain.js:18:7
30 verbose stack     at C:Program Filesnodejsnode_modulesnpmlibinstall.js:337:5
30 verbose stack     at Array.<anonymous> (C:Program Filesnodejsnode_modulesnpmnode_modulesslidelibbind-actor.js:15:8)
30 verbose stack     at LOOP (C:Program Filesnodejsnode_modulesnpmnode_modulesslidelibchain.js:15:14)
30 verbose stack     at chain (C:Program Filesnodejsnode_modulesnpmnode_modulesslidelibchain.js:20:5)
30 verbose stack     at C:Program Filesnodejsnode_modulesnpmlibinstall.js:294:5
30 verbose stack     at C:Program Filesnodejsnode_modulesnpmnode_modulesslidelibchain.js:16:22
31 verbose cwd C:Windowssystem32
32 error Windows_NT 6.1.7601
33 error argv "C:\Program Files\nodejs\node.exe" "C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js" "install" "-g" "react-native-cli"
34 error node v7.6.0
35 error npm  v4.1.2
36 error Cannot read property 'path' of null
37 error If you need help, you may report this error at:
37 error     <https://github.com/npm/npm/issues>
38 verbose exit [ 1, true ]

这是我尝试的，

1. 检查了文件夹" C： Program Files nodejs node_modules"的许可，并发现其ReadOnly
2. 已将所有权转移并分配给我自己和管理员用户，然后仅通过attrib -r -s c： program文件 nodejs node_modules/s/s/d 除读取。
3. 当我检查文件夹的许可时，它仍然仅读取，但是内部的所有文件都不在读取
的控制下
4. 再次执行" NPM安装react-native-cli"命令，该命令导致相同的错误

解决方案

1. 如果您较早使用过Sinopia并创建了.NPMRC文件，则重命名或删除配置文件
2. 使用npm install -G react-native-cli成功安装lib

推理

1. Sinopia配置文件将使NPM首先在本地计算机中查找软件包，如果找不到，则可以在NPMJs.com上获取软件包
2. 我早些时候已经安装并使用了新加坡并卸载了它，但看起来配置文件没有被删除3.因此，配置文件使NPM在本地计算机中查找包装，而本地服务器根本没有运行，说该软件包不可用！

Answer 1

我认为您正在使用代理，是" http：//localhost：4873/"您代理（或者您设置了自定义注册表）？如果是这样，您最好检查您的网络，并确保您可以使用NPM正常安装其他模块。

"错误：连接Econnrefuse 127.0.0.1:4873"表明它无法连接到127.0.0.1:4873

Answer 2

我认为您的NPM路径未在环境变量中设置。请设置您的NPM路径或从安装NPM的位置运行此命令。在Windows中设置环境变量1.转到我的计算机中的属性。2.转到高级系统设置。3.然后转到环境变量。4.然后在路径变量中添加NPM路径。例如C： Users Myuser AppData roaming npm;