error in longjohn.js when launching project from Titanium Studio 3.1.2.201308091617-09082013162052

When I try to launch a project from Titanium Studio, I get the following error:

/usr/lib/node_modules/titanium/node_modules/longjohn/dist/longjohn.js:181
        throw e;

Titanium Studio, build: 3.1.2.201308091617-09082013162052

npm -v 1.3.8

nodejs --version v0.10.17

Ubuntu 12.04 LTS

/usr/lib/node_modules/titanium/node_modules/longjohn/dist/longjohn.js:181
        throw e;
              ^
TypeError: Object #<Object> has no method 'readdirSyncRecursive'
    at Object.<anonymous> (/usr/lib/node_modules/titanium/node_modules/node-appc/lib/messaging.js:49:21)
    at Module._compile (module.js:456:26)
    at Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Module._load (module.js:312:12)
    at Module.require (module.js:364:17)
    at require (module.js:380:17)
    at /usr/lib/node_modules/titanium/node_modules/node-appc/lib/appc.js:51:34
    at Array.forEach (native)
    at Object.<anonymous> (/usr/lib/node_modules/titanium/node_modules/node-appc/lib/appc.js:50:3)
---------------------------------------------
    at exports.execFile (child_process.js:691:9)
    at exports.exec (child_process.js:578:18)
    at detectLocale (/usr/lib/node_modules/titanium/lib/titanium.js:53:4)
    at setLocale (/usr/lib/node_modules/titanium/lib/titanium.js:60:3)
    at /usr/lib/node_modules/titanium/lib/titanium.js:83:3
    at Object.<anonymous> (/usr/lib/node_modules/titanium/lib/titanium.js:85:3)
    at Module._compile (module.js:456:26)
    at Module._extensions..js (module.js:474:10)