why can't i find the module 'socket.io'?

wahaha

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Dec 30, 2011, 7:30:34 AM12/30/11

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i have installed the module 'socket.io' currectly in 'C:\Documents and
Settings\xxx\node_modules'.
and i have checked that i can require the module 'socket.io' in cmd
successfully.
but when i require the module in a js file,it wrongs,the cmd console
said:
Error: Cannot find module 'socket.io'

i do not know why...

Isaac Schlueter

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Dec 30, 2011, 12:59:36 PM12/30/11

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Please share the code you're using.

Works just fine for me. Observe:

c:\Users\Isaac Schlueter>mkdir socket.io-test

c:\Users\Isaac Schlueter>cd socket.io-test

c:\Users\Isaac Schlueter\socket.io-test>cat >test.js
require("socket.io")
console.log(require.resolve("socket.io"))
// press Control-D to finish

c:\Users\Isaac Schlueter\socket.io-test>mkdir node_modules

c:\Users\Isaac Schlueter\socket.io-test>node test.js
c:\Users\Isaac Schlueter\socket.io-test\node_modules\socket.io\index.js

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Shinuza

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Dec 30, 2011, 1:47:11 PM12/30/11

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Can you post some code? (Gist, pastie, etc...)

Glenn Block

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Dec 30, 2011, 7:36:21 PM12/30/11

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How did you install it, via npm? Is your app sitting in "xxx"?

Glenn

wahaha

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Dec 30, 2011, 9:12:39 PM12/30/11

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the 1st step: C:\Documents and Settings\xxx,cmd,nmp install socket.io
the 2cnd step: cmd,node,require("socket.io").version,display: '0.8.7'
the 3rd step: create a file a.js,write:
console.log(require("socket.io").version);
the 4th step: cmd, node d:\a.js, display: Error: Cannot find module
'socket.io'

Shinuza

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Dec 30, 2011, 10:10:55 PM12/30/11

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What's the output of

console.log(module.paths);

?

wahaha

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Dec 30, 2011, 11:59:50 PM12/30/11

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[ 'C:\\Documents and Settings\\yuliang\\repl\\node_modules',
'C:\\Documents and Settings\\yuliang\\node_modules',
'C:\\Documents and Settings\\node_modules',
'C:\\node_modules' ]

Shinuza

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Dec 31, 2011, 10:06:33 AM12/31/11

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Versions of node.js and npm, please?

Isaac Schlueter

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Dec 31, 2011, 9:09:40 PM12/31/11

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Notice the problem? Look at the paths you mentioned:

>>>
the 1st step: C:\Documents and Settings\xxx,cmd,nmp install socket.io
the 2cnd step: cmd,node,require("socket.io").version,display: '0.8.7'
the 3rd step: create a file a.js,write:
console.log(require("socket.io").version);
the 4th step: cmd, node d:\a.js, display: Error: Cannot find module
'socket.io'
>>>

That file has to live somewhere under C:\Documents and settings\xxx.
npm installs packages locally to the current working directory. Since
you were in C:\Documents and Settings\xxx when you installed it, it
installed in C:\Documents and Settings\xxx\node_modules. So, your
file in d:\a.js can't see it! If you move that file to C:\Documents
and Settings\xxx\a.js, then it will work. Or, you can run `d:\` and
then `npm install socket.io` to install it there, as well.

Whenever you install something with npm, it outputs the location where
it got installed to. You can only access that package if you're under
that folder somewhere.

On Sat, Dec 31, 2011 at 07:06, Shinuza <samor...@gmail.com> wrote:
> Versions of node.js and npm, please?
>

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