Aurelia: Error loading app-bundle script - aurelia

Question

I am trying to move the index.html to a subfolder (in this case a folder called "app") but I am unable to make it to work with CLI. Here is my aurelia.json
{
"name": "lv-app",
"type": "project:application",
"bundler": {
"id": "cli",
"displayName": "Aurelia-CLI"
},
"build": {
"targets": [
{
"id": "web",
"displayName": "Web",
"output": "app/scripts"
}
],
"options": {
"minify": "stage & prod",
"sourcemaps": "dev & stage"
},
"bundles": [
{
"name": "app-bundle.js",
"source": [
"[**/*.js]",
"**/*.{css,html}"
]
},
{
"name": "vendor-bundle.js",
"prepend": [
"node_modules/requirejs/require.js"
],
"dependencies": [
// dependencies omitted
]
}
],
"loader": {
"type": "require",
"configTarget": "vendor-bundle.js",
"includeBundleMetadataInConfig": "auto",
"plugins": [
{
"name": "text",
"extensions": [
".html",
".css"
],
"stub": true
}
]
}
},
"platform": {
"id": "web",
"displayName": "Web",
"baseDir": "./app"
},
"transpiler": {
"id": "babel",
"displayName": "Babel",
"fileExtension": ".js",
"options": {
"plugins": [
"transform-es2015-modules-amd"
]
},
"source": "src/**/*.js"
},
"markupProcessor": {
"id": "none",
"displayName": "None",
"fileExtension": ".html",
"source": "src/**/*.html"
},
"cssProcessor": {
"id": "postcss",
"displayName": "PostCSS",
"fileExtension": ".css",
"source": "src/**/*.css"
},
"paths": {
"root": "src",
"resources": "resources",
"elements": "resources/elements",
"attributes": "resources/attributes",
"valueConverters": "resources/value-converters",
"bindingBehaviors": "resources/binding-behaviors"
}
}
Al first I was having this error:
ERROR [Bundle] Error: Unable to update vendor-bundle path to
app/scripts/vendor-bundle.js, could not find existing reference to
replace
EDIT
But I had configured the baseDir incorrectly.
After changing "baseDir": "app/" for "baseDir": ". /app" I'm getting a different error. When I load the web in localhost the app-bundle.js doesn't load apparently because it's pointing to the wrong route as can be seen in the next picture
As you can see in the next picture the vendor-bundle.js is loading from localhost:9000/scripts no localhost:9000/app/scripts/