Dojo Build System - custom paths hash not working - build

Question

I am trying to switch from the old dojo build system to the new one. I have been pulling my hair out but I can't seem to get the build script to pick up the custom paths mapping that i specified in the building profile. So if my project structure is like:
/www/dojo
/www/dojox
/www/dijit
/www/app.profile.js
/www/myapp/package.json #links to myapp.profile.js
/www/myapp/myapp.profile.js #standard package profile stub
#with test,copyOnly,amd
/www/myapp/main.js
/www/myapp/bar/hello.js
/www/myapp/bar/sometext.html
The files look like below:
//-------------------------------------------
//FILE: app.profile.js
//-------------------------------------------
var profile = (function(){
return {
basePath: ".",
releaseDir: "builds",
releaseName: "v0_0_1",
optimize: "closure",
cssOptimize: "comments",
action: "release",
packages:[
{
name: "dojo",
location: "dojo/dojo"
},
{
name: "myapp",
location: "myapp"
}
],
prefixes: {
"foo": "bar" //doesn't seem to work?
},
paths: {
"foo": "bar" //doesn't seem to work?
},
loaderConfig:{
paths: {
"foo": "bar" //doesn't seem to work?
},
},
layers: {
"mypp/myapp-release": {
include: [
"myapp/main"
]
}
}
};
})();
//--------------------------------------
//FILE: main.js
//--------------------------------------
require(["dojo/_base/html", "foo/hello", "dojo/text!foo/sometext.html"],
function(html, Bar, sometext){
alert(sometext);
}
);
//--------------------------------------
//FILE: hello.js
//--------------------------------------
require([ ],
function(){
alert("hello!");
}
);
And I am running the build command with:
node /www/dojo/dojo.js load=build /www/app.profile.js
The build script would tell me that the dependency "foo/hello" is not found, even though it should have been mapped to bar/hello.js ; the same goes for foo/sometext.html .
Any help would be really appreciated; I don't want to keep pulling my hair til I'm bald! :D