javascript - grunt watch tasks no response after running -


i have problem when run "grunt" in terminal, after changes in ".scss" file nothing happens, terminal still waitting..... here gruntfile.js file:

module.exports = function(grunt){     require('load-grunt-tasks')(grunt);     grunt.loadnpmtasks('grunt-contrib-jshint');     var config = grunt.file.readyaml('gruntconfig.yml');      grunt.initconfig({         sass:{             dist:{                               src: config.scssdir+'style.scss',                 dest: config.cssdir+'style.css'             }         },         concat:{             dist:{                 src: config.jssrcdir+'*.js',                 dest: config.jsconcatdir+'app.js'             }         },         jshint:{             options:{                 "eqeqeq": true             },             all:[                 'gruntfile.js',                 config.jssrcdir+"*.js"             ]         },         watch:{             sass:{                 files: config.scssdir+'**/*.scss',                 tasks:['sass']             }         }     });      grunt.registertask('default',['jshint',         'sass','concat','watch']); };

and terminal this:

enter image description here

use config variable avoid problem. example:

var appconfigvars = {     sass: 'static/sass' };  grunt.initconfig({     appconfig: appconfigvars,     watch:{         sass:{             files: '<%= appconfig.sass %>**/*.scss',             tasks:['sass']         }     } });

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