Gruntfile.js

gistfile1.txt

// Sample grunt-jekyll grunt.js file
// https://github.com/dannygarcia/grunt-jekyll

/*global module:false*/
module.exports = function(grunt) {

  // Project configuration.
  grunt.initConfig({

    jekyll: {
      server : {
        src : 'templates',
        dest: 'dev',
        server : true,
        server_port : 8000,
        auto : true
      },
      dev: {
        src: 'templates',
        dest: 'dev'
      },
      prod: {
        src: 'templates',
        dest: 'prod'
      }
    },
    
    server
    watch: { // for development run 'grunt watch'
      jekyll: {
        files: ['templates/*.html'],
        tasks: ['jekyll:dev']
      }
    }

    watch: { // for development run 'grunt watch'
      jekyll: {
        files: ['templates/*.html'],
        tasks: ['jekyll:dev']
      }
    }
  });

  // Default task. Run standard jekyll server.
  grunt.registerTask('default', ['server', 'watch']);

  // plugin tasks
  grunt.loadNpmTasks('grunt-jekyll');
  grunt.loadNpmTasks('grunt-contrib-watch');

};

@Wolfr I imagine this is too late to help but I'll say it for the sake of other people. Try killing lines 28-34 in your example, looks like they're what's causing that error.