我似乎正在努力让NPM安装Web3
使用的命令：
NPM安装Web3
错误：
npm err！路径必须是字符串。收到未定义的
日志：
info it worked if it ends with ok
1 verbose cli [ '/usr/bin/node', '/usr/bin/npm', 'install', 'web3' ]
2 info using npm@5.0.4
3 info using node@v8.1.3
4 verbose npm-session 02c74f27df35fda1
5 silly install loadCurrentTree
6 silly install readLocalPackageData
7 http fetch GET 304 https://registry.npmjs.org/web3 236ms (from cache)
8 silly pacote tag manifest for web3@latest fetched in 269ms
9 verbose stack TypeError: Path must be a string. Received undefined
9 verbose stack at assertPath (path.js:28:11)
9 verbose stack at Object.relative (path.js:1248:5)
9 verbose stack at computeVersionSpec (/usr/lib/node_modules/npm/lib/install/deps.js:282:27)
9 verbose stack at Installer.normalizeCurrentTree (/usr/lib/node_modules/npm/lib/install.js:370:69)
9 verbose stack at Array.<anonymous> (/usr/lib/node_modules/npm/node_modules/slide/lib/bind-actor.js:15:8)
9 verbose stack at LOOP (/usr/lib/node_modules/npm/node_modules/slide/lib/chain.js:15:14)
9 verbose stack at /usr/lib/node_modules/npm/node_modules/slide/lib/chain.js:18:7
9 verbose stack at iferr (/usr/lib/node_modules/npm/lib/install.js:328:5)
9 verbose stack at /usr/lib/node_modules/npm/node_modules/iferr/index.js:13:50
9 verbose stack at cb (/usr/lib/node_modules/npm/node_modules/slide/lib/async-map.js:47:24)
9 verbose stack at /usr/lib/node_modules/npm/node_modules/call-limit/call-limit.js:22:12
9 verbose stack at _combinedTickCallback (internal/process/next_tick.js:95:7)
9 verbose stack at process._tickCallback (internal/process/next_tick.js:161:9)
10 verbose cwd /home/username
11 verbose Linux 4.11.7-1-ARCH
12 verbose argv "/usr/bin/node" "/usr/bin/npm" "install" "web3"
13 verbose node v8.1.3
14 verbose npm v5.0.4
15 error Path must be a string. Received undefined
16 verbose exit [ 1, true ]
我也尝试使用root用户运行它们。
问题可能来自使用beta版本的Web3，目前不稳定，目前正在进行重大开发，您有两个选项之一，
我认为使用稳定版本0.19或类似的东西。
我建议尝试的另一件事是npm --save，以便在项目中保存软件包