UglifyJS using NPM in Windows

Question

I am on a Windows 7 box, and I recently installed the most recent version of Node from NodeJS.org

I then ran...

C:\Users\jcreamer>npm install -g uglify-js  
npm http GET https://registry.npmjs.org/uglify-js  
npm http 304 https://registry.npmjs.org/uglify-js  
C:\Users\jcreamer\AppData\Roaming\npm\uglifyjs -> C:\Users\jcreamer\AppData\Roaming\npm\node_modules\uglify-js\bin\uglifyjs   
[email protected] C:\Users\jcreamer\AppData\Roaming\npm\node_modules\uglify-js

And restarted command prompt, but I still cannot run...

cd c:\inetpub\wwwroot\app\  
node uglifyjs -o app.min.js app.js

I get this error...

node.js:201
        throw e; // process.nextTick error, or 'error' event on first tick  
              ^  
Error: Cannot find module 'C:\Inetpub\wwwroot\analytics\uglifyjs'  
    at Function._resolveFilename (module.js:334:11)  
    at Function._load (module.js:279:25)  
    at Array.0 (module.js:470:10)  
    at EventEmitter._tickCallback (node.js:192:40)

Is there something else I need to do?

UPDATE
Even after I ran the npm as administartor, if I run

C:\Users\jcreamer>uglifyjs

I get...

C:\Users\jcreamer>"C:\Users\jcreamer\AppData\Roaming\npm\\.\node_modules\uglify-js\bin\uglifyjs"
'"C:\Users\jcreamer\AppData\Roaming\npm\\.\node_modules\uglify-js\bin\uglifyjs"' is not recognized as an internal or external comm
and,
operable program or batch file.

seenukarthi · Accepted Answer · 2015-08-05 08:20:52Z

12

If you have Windows, Then use the following command

npm -g install uglify-js

the -g flag indicates that this is a global installation and will set the env path.

Working for me. Let me know if it is working for you as well.

edited Aug 5, 2015 at 8:20

seenukarthi

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answered Feb 3, 2013 at 19:50

Tarun

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Comments

isaacs · Accepted Answer · 2012-01-05 15:59:25Z

8

Global installs are for command-line utilities.

As you can see the uglifyjs command line utility is dropped into your path, at C:\Users\jcreamer\AppData\Roaming\npm\uglifyjs (which is a link to uglify's bin\uglifyjs as you can see in the output.)

@alessioalex You no longer need admin packages to install a global package. The node MSI installer sets the global default prefix to %APPDATA%\npm, so users have the ability to write to it.

If you're trying to require("uglify-js") in your node program, then you should install it locally, not with the -g. It looks like you're trying to use it as a standalone util, so alessioalex's #2 suggestion is exactly right. Just type uglifyjs to use it, not node uglifyjs.

answered Jan 5, 2012 at 15:59

isaacs

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3 Comments

jcreamer898 Over a year ago

Running just uglifyjs is giving me the '"C:\Users\jcreamer\AppData\Roaming\npm\\.\node_modules\uglify-js\bin\uglifyjs"' is not recognized as an internal or external comm and, operable program or batch file.

jcreamer898 Over a year ago

Sure! Before I do that, I want to make sure I am 100% sure I am doing it correctly... So, I should... 1. Run npm -g install uglify-js 2. Run uglifyjs -o app.min.js app.js And that should work?

alessioalex Over a year ago

You're doing things ok, the same happens to me.

seenukarthi · Accepted Answer · 2015-08-05 08:21:05Z

0

You can do two things:

Run the command prompt with administrator privileges when installing a global package like this one (right click -> Run as administrator).
Instead of node uglifyjs... use uglifyjs directly. Since it's installed globally you don't need to call it with node in front, that makes no sense.

edited Aug 5, 2015 at 8:21

seenukarthi

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answered Jan 5, 2012 at 15:36

alessioalex

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1 Comment

jcreamer898 Over a year ago

Tried that, check out my update to the question to see what happened... thanks for your help on this!

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