node.js - 如何安装socket.io

Question

我正在研究node和socket.io，但是在安装socket.io时遇到问题这是我所做的:

1. 我创建了一个名为 nodejs 的文件夹
2. 我创建了一个app.js(里面还没有代码)
3. 尝试使用此命令“npm install socket.io”安装套接字

我收到了这些错误消息:

C:\wamp\www\nodejs
λ npm install socket.io
/


> bufferutil@1.1.0 install C:\wamp\www\nodejs\node_modules\socket.io\node_modules\engine.io\node_modules\ws\node_modules\bufferutil
> node-gyp rebuild

|
C:\wamp\www\nodejs\node_modules\socket.io\node_modules\engine.io\node_modules\ws\node_modules\bufferutil {git}{hg}
{lamb} node "C:\Program Files\nodejs\node_modules\npm\bin\node-gyp-bin\\..\..\node_modules\node-gyp\bin\node-gyp.js" rebuild
gyp ERR! configure error
gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.
gyp ERR! stack     at failNoPython (C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.js:103:14)
gyp ERR! stack     at C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.js:64:11
gyp ERR! stack     at Object.oncomplete (evalmachine.<anonymous>:108:15)
gyp ERR! System Windows_NT 6.2.9200
gyp ERR! command "node" "C:\\Program Files\\nodejs\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild"
gyp ERR! cwd C:\wamp\www\nodejs\node_modules\socket.io\node_modules\engine.io\node_modules\ws\node_modules\bufferutil
gyp ERR! node -v v0.10.35
gyp ERR! node-gyp -v v1.0.1
gyp ERR! not ok
npm WARN optional dep failed, continuing bufferutil@1.1.0

> utf-8-validate@1.1.0 install C:\wamp\www\nodejs\node_modules\socket.io\node_modules\engine.io\node_modules\ws\node_modules\utf-8-validate
> node-gyp rebuild


C:\wamp\www\nodejs\node_modules\socket.io\node_modules\engine.io\node_modules\ws\node_modules\utf-8-validate {git}{hg}
{lamb} node "C:\Program Files\nodejs\node_modules\npm\bin\node-gyp-bin\\..\..\node_modules\node-gyp\bin\node-gyp.js" rebuild
configure error
gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.
stack     at failNoPython (C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.js:103:14)
gyp ERR! stack     at C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.js:64:11
gyp ERR! stack     at Object.oncomplete (evalmachine.<anonymous>:108:15)
 ERR! System Windows_NT 6.2.9200
gyp ERR! command "node" "C:\\Program Files\\nodejs\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild"
cwd C:\wamp\www\nodejs\node_modules\socket.io\node_modules\engine.io\node_modules\ws\node_modules\utf-8-validate
gyp ERR! node -v v0.10.35
ERR! node-gyp -v v1.0.1
gyp ERR! not ok
npm WARN optional dep failed, continuing utf-8-validate@1.1.0
\


> utf-8-validate@1.1.0 install C:\wamp\www\nodejs\node_modules\socket.io\node_modules\socket.io-client\node_modules\engine.io-client\node_modules\ws\node_modules\utf-8-validate
> node-gyp rebuild

|
C:\wamp\www\nodejs\node_modules\socket.io\node_modules\socket.io-client\node_modules\engine.io-client\node_modules\ws\node_modules\utf-8-validate {git}{hg}
{lamb} node "C:\Program Files\nodejs\node_modules\npm\bin\node-gyp-bin\\..\..\node_modules\node-gyp\bin\node-gyp.js" rebuild
gyp ERR! configure error
gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.
gyp ERR! stack     at failNoPython (C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.js:103:14)
gyp ERR! stack     at C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.js:64:11
gyp ERR! stack     at Object.oncomplete (evalmachine.<anonymous>:108:15)
gyp ERR! System Windows_NT 6.2.9200
gyp ERR! command "node" "C:\\Program Files\\nodejs\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild"
gyp ERR! cwd C:\wamp\www\nodejs\node_modules\socket.io\node_modules\socket.io-client\node_modules\engine.io-client\node_modules\ws\node_modules\utf-8-validate
gyp ERR! node -v v0.10.35
gyp ERR! node-gyp -v v1.0.1
gyp ERR! not ok
npm WARN optional dep failed, continuing utf-8-validate@1.1.0

> bufferutil@1.1.0 install C:\wamp\www\nodejs\node_modules\socket.io\node_modules\socket.io-client\node_modules\engine.io-client\node_modules\ws\node_modules\bufferutil
> node-gyp rebuild


C:\wamp\www\nodejs\node_modules\socket.io\node_modules\socket.io-client\node_modules\engine.io-client\node_modules\ws\node_modules\bufferutil {git}{hg}
{lamb} node "C:\Program Files\nodejs\node_modules\npm\bin\node-gyp-bin\\..\..\node_modules\node-gyp\bin\node-gyp.js" rebuild
gyp ERR! configure error
gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.
gyp ERR! stack     at failNoPython (C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.js:103:14)
gyp ERR! stack     at C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.js:64:11
gyp ERR! stack     at Object.oncomplete (evalmachine.<anonymous>:108:15)
gyp ERR! System Windows_NT 6.2.9200
gyp ERR! command "node" "C:\\Program Files\\nodejs\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild"
gyp ERR! cwd C:\wamp\www\nodejs\node_modules\socket.io\node_modules\socket.io-client\node_modules\engine.io-client\node_modules\ws\node_modules\bufferutil
gyp ERR! node -v v0.10.35
gyp ERR! node-gyp -v v1.0.1
gyp ERR! not ok
npm WARN optional dep failed, continuing bufferutil@1.1.0
socket.io@1.3.6 node_modules\socket.io
├── has-binary-data@0.1.3 (isarray@0.0.1)
├── debug@2.1.0 (ms@0.6.2)
├── socket.io-parser@2.2.4 (isarray@0.0.1, component-emitter@1.1.2, debug@0.7.4, json3@3.2.6, benchmark@1.0.0)
├── socket.io-adapter@0.3.1 (object-keys@1.0.1, debug@1.0.2, socket.io-parser@2.2.2)
├── engine.io@1.5.2 (base64id@0.1.0, debug@1.0.3, engine.io-parser@1.2.1, ws@0.7.2)
└── socket.io-client@1.3.6 (component-bind@1.0.0, to-array@0.1.3, indexof@0.0.1, backo2@1.0.2, object-component@0.0.3, debug@0.7.4, component-emitter@1.1.2, has-binary@0.1.6, parseuri@0.0.2, engine.io-client@1.5.2)

当我检查我的文件夹时，有一个node_modules文件夹，里面是socket.io。看起来不错，但是你能告诉我我是怎么得到这些错误的吗？需要重新安装nodejs吗？或者我在安装 socket 时遗漏了一些部件？

Answer 1

Socket.io 已正确安装。

未正确安装的是一些可选依赖项。

npm WARN optional dep failed, continuing ...

某些依赖项未正确安装的原因非常清楚

gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.

因此，如果您希望安装这些可选依赖项(您可能需要)，则必须在系统中安装 python。