Node cannot find modules in IIS, can find from prompt

Question

I have installed some modules via npm install <module> and I can access them when I run node at the command prompt, but when I run the app under IIS using iisnode, I get errors like:

Application has thrown an uncaught exception and is terminated:
Error: Cannot find module 'formidable'
    at Function.Module._resolveFilename (module.js:338:15)
    at Function.Module._load (module.js:280:25)
    at Module.require (module.js:364:17)
    at require (module.js:380:17)
    at Object.<anonymous> (C:\Program Files\iisnode\www\helloworld\hello.js:3:18)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Module.require (module.js:364:17)

What is going on? Is there a different way I have to install modules if I am using iisnode?

Here is my web.config file from the project:

<configuration>
  <system.webServer>

    <!-- indicates that the hello.js file is a node.js application 
to be handled by the iisnode module -->

    <handlers>
      <add name="iisnode" path="hello.js" verb="*" modules="iisnode" />
    </handlers>

  </system.webServer>
</configuration>

OK, I added my web.config file. I'm not sure what else to add, everything else is the same as the defaults. — Drew
– Drew, Commented Apr 14, 2014 at 15:57

Cybermaxs · Accepted Answer · 2014-04-14 18:36:36Z

1

Since npm 1.0, there are two ways to install things: Globally & Locally. Read documentation here.

Global install (with -g) for something you want to use in your shell or on the command line.

When you install a package locally, via npm install onepackage, it will insert the dependency into package.json and add the library under the directory node_modules. This is mainly for a package you want to use in your program, using require('onepackage').

answered Apr 14, 2014 at 18:36

Cybermaxs

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Drew · Accepted Answer · 2014-04-14 18:25:43Z

0

Looks like I found the problem. Unlike most package managers I've used, npm does not install things globally, but only to the folder you are located in when you install. I installed in the correct folder and it seems to be working.

answered Apr 14, 2014 at 18:25

Drew

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