javascript - Grunt 'No Express Targets Found' With load-grunt-config -

when grunt module load-grunt-config express configuration, no "express" targets found.. clarified grunt load-grunt-config --config-debug finding correctly. doing wrong?

debug:

one@node ~/github/simple-load-balancer-service/lbs $ grunt  load-grunt-config --config-debug {   "express": {     "prod": {       "options": {         "port": 9000,         "script": "app.js"       }     }   },   "package": {     "name": "app",     "description": "simple-angular",     "version": "0.0.1",     "dependencies": {       "express": "4.x",       "express-multi-proxy-router": "*",       "body-parser": "*"     },     "devdependencies": {       "grunt": "latest",       "testem": "latest",       "jasmine": "latest",       "phantomjs": "latest",       "load-grunt-tasks": "latest",       "load-grunt-config": "latest",       "grunt-bower-install": "latest",       "grunt-contrib-watch": "latest",       "grunt-contrib-connect": "latest",       "grunt-express-server": "latest",       "grunt-open": "latest",       "grunt-contrib-coffee": "latest",       "grunt-contrib-less": "latest",       "grunt-injector": "latest",       "grunt-testem": "latest",       "grunt-bowercopy": "latest",       "grunt-reload": "latest"     }   } } 

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grunt/express.js"

one@node ~/github/simple-load-balancer-service/lbs $ cat grunt/express.js  module.exports = {   prod: {     options: {       port: 9000,       script: 'app.js',     }   } }; 

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gruntfile.js:

module.exports = function(grunt) {     require('load-grunt-tasks')(grunt);     require('load-grunt-config')(grunt);     grunt.initconfig({     //todo: clean file path directives         watch: {         express: {         files: ['app/static/**',              'app/scripts/**',             'app.js'],         tasks: ['express:prod'],         options: {             spawn: false,             livereload: true         }         },         files: ['app/static/**',                 'app/scripts/**',             'app.js'],         tasks: ['reload'],         }     });     grunt.registertask('default', 'start server', function() {         grunt.task.run('express');         //  uncomment grunt.task.run('open') if plan on running on running on          //  127.0.0.1 rather interfaces 0.0.0.0         //grunt.task.run('open');         //grunt.task.run('bowerinstall');         //grunt.task.run('coffee');         //grunt.task.run('less');         //grunt.task.run('injector');         grunt.task.run('watch');     }); }