出于某种原因，在我的机器上全局安装Express /usr/local/lib/node_modules如果我homebrew进入目录并尝试运行express我收到以下错误：

express: command not found.

即使我用/usr/local/lib/node_modules运行它，我仍然得到相同的输出。 我已经尝试了多种不同的解决方案来解决这个问题。 我已经通过homebrew安装了节点，其中Stack Overflow上的某些线程可能是一个问题所以我完全卸载了节点并通过nodejs.org上的安装程序重新安装(我现在正在运行v0.10.26)并且问题仍然存在。

如果我进入我的/usr/local/lib/node_modules Express就在那里但在/ usr / local / bin中没有关于Express的内容。 我不确定这是否是一个问题，但考虑到该目录中有其他全局安装的节点包的二进制文件，我认为可能存在问题。

这是我安装时获得的确切输出：

npm http GET https://registry.npmjs.org/express

npm http 304 https://registry.npmjs.org/express

npm http GET https://registry.npmjs.org/accepts/1.0.0

npm http GET https://registry.npmjs.org/type-is/1.0.0

npm http GET https://registry.npmjs.org/range-parser/1.0.0

npm http GET https://registry.npmjs.org/cookie/0.1.0

npm http GET https://registry.npmjs.org/fresh/0.2.2

npm http GET https://registry.npmjs.org/buffer-crc32/0.2.1

npm http GET https://registry.npmjs.org/send/0.2.0

npm http GET https://registry.npmjs.org/methods/0.1.0

npm http GET https://registry.npmjs.org/cookie-signature/1.0.3

npm http GET https://registry.npmjs.org/utils-merge/1.0.0

npm http GET https://registry.npmjs.org/merge-descriptors/0.0.2

npm http GET https://registry.npmjs.org/escape-html/1.0.1

npm http GET https://registry.npmjs.org/serve-static/1.0.1

npm http GET https://registry.npmjs.org/qs/0.6.6

npm http GET https://registry.npmjs.org/path-to-regexp/0.1.2

npm http GET https://registry.npmjs.org/parseurl/1.0.1

npm http GET https://registry.npmjs.org/debug

npm http 304 https://registry.npmjs.org/cookie/0.1.0

npm http 304 https://registry.npmjs.org/type-is/1.0.0

npm http 304 https://registry.npmjs.org/buffer-crc32/0.2.1

npm http 304 https://registry.npmjs.org/methods/0.1.0

npm http 304 https://registry.npmjs.org/accepts/1.0.0

npm http 304 https://registry.npmjs.org/range-parser/1.0.0

npm http 304 https://registry.npmjs.org/cookie-signature/1.0.3

npm http 304 https://registry.npmjs.org/fresh/0.2.2

npm http 304 https://registry.npmjs.org/serve-static/1.0.1

npm http 304 https://registry.npmjs.org/qs/0.6.6

npm http 304 https://registry.npmjs.org/utils-merge/1.0.0

npm http 304 https://registry.npmjs.org/merge-descriptors/0.0.2

npm http 304 https://registry.npmjs.org/escape-html/1.0.1

npm http 304 https://registry.npmjs.org/path-to-regexp/0.1.2

npm http 304 https://registry.npmjs.org/parseurl/1.0.1

npm http 304 https://registry.npmjs.org/debug

npm http 304 https://registry.npmjs.org/send/0.2.0

npm http GET https://registry.npmjs.org/mime

npm http GET https://registry.npmjs.org/send/0.1.4

npm http GET https://registry.npmjs.org/mime

npm http GET https://registry.npmjs.org/negotiator

npm http 304 https://registry.npmjs.org/mime

npm http 304 https://registry.npmjs.org/mime

npm http 304 https://registry.npmjs.org/send/0.1.4

npm http GET https://registry.npmjs.org/range-parser/0.0.4

npm http GET https://registry.npmjs.org/fresh/0.2.0

npm http 304 https://registry.npmjs.org/negotiator

npm http 304 https://registry.npmjs.org/range-parser/0.0.4

npm http 304 https://registry.npmjs.org/fresh/0.2.0

express@4.0.0 /usr/local/lib/node_modules/express

├── methods@0.1.0

├── parseurl@1.0.1

├── utils-merge@1.0.0

├── merge-descriptors@0.0.2

├── escape-html@1.0.1

├── debug@0.8.0

├── cookie-signature@1.0.3

├── range-parser@1.0.0

├── fresh@0.2.2

├── qs@0.6.6

├── buffer-crc32@0.2.1

├── cookie@0.1.0

├── path-to-regexp@0.1.2

├── type-is@1.0.0 (mime@1.2.11)

├── send@0.2.0 (mime@1.2.11)

├── serve-static@1.0.1 (send@0.1.4)

└── accepts@1.0.0 (negotiator@0.3.0, mime@1.2.11)