Cannot GET /

[dorothyDorothy]

This is my Gruntfile:

`var path = require('path');
module.exports = function(grunt) {
grunt.initConfig({
pkg: grunt.file.readJSON('package.json'),

// grunt-express will serve the files from the folders listed in `bases`
// on specified `port` and `hostname`
express: {
  scoop: {
    options: {
      port: 9000,
      debug: true,
      hostname: "dev.scoopbmx",
      bases: [path.resolve(__dirname, '/Scoop_BMX/htdocs')], 
      livereload: true,
      showStack: true
    }
  }
},

// grunt-open will open your browser at the project's URL
open: {
  scoop: {
    // Gets the port from the connect configuration
    path: 'http://dev.scoopbmx:<%= express.scoop.options.port%>'
  }
},         

watch: {
  scoop: {
    files: [
      '_source/js/scoop/*.js' , 
      '_source/scss/scoop/*.scss'
    ],
    tasks: [
      'express',
      'open'
    ],
    options: {
      spawn: false,
      livereload: true
    }
  }
}

});

grunt.loadNpmTasks('grunt-express');
grunt.loadNpmTasks('grunt-open');

grunt.registerTask('default', [ 'watch']);

};

When I run this I get this message in the console:

Running "express-server:scoop" (express-server) task
Web server started on port:9000, hostname: dev.scoopbmx [pid: 10642]

It opens my browser at dev.scoopbmx:9000 but the response is

Cannot GET /

I'm running ubuntu 16.04
Can you tell me what I'm doing wrong?
Also, does this support PHP applications/websites?
Thanks in advance