I'm in the same boat; learning about Node and NPM. However, I am at an enpass with an error about 'isConfigurable' method on the Chaos library. Any clue about how to fix it?

node.js:63 throw e; ^ TypeError: Cannot call method 'isConfigurable' of undefined at Function.seal (native) at Object.<anonymous> (/Users/rnhurt/.node_libraries/.npm/chaos/0.1.6-pre/package/chaos.js:40:10) at new <anonymous> (/Users/rnhurt/.node_libraries/.npm/chaos/0.1.6-pre/package/chaos.js:87:20) at /Users/rnhurt/.node_libraries/.npm/chaos/0.1.6-pre/package/chaos.js:64:40 at /Users/rnhurt/.node_libraries/.npm/helpful/0.0.3/package/lib/login.js:205:23 at Object.<anonymous> (/Users/rnhurt/src/js/maptail/maptail.js:57:5) at Module._compile (node.js:462:23) at Module._loadScriptSync (node.js:469:10) at Module.loadSync (node.js:338:12) at Object.runMain (node.js:522:24)