npm WARN unmet dependency which is version 5.0.15
[localhost] local: grunt lumbar:build
module.js:339
    throw err;
    ^

Error: Cannot find module './lodash'
  at Function.Module._resolveFilename (module.js:337:15)
  at Function.Module._load (module.js:287:25)
  at Module.require (module.js:366:17)
  at require (module.js:385:17)
  at Object.<anonymous> (/root/indico/ext_modules/fullcalendar/node_modules/grunt/node_modules/grunt-legacy-util/node_modules/lodash/index.js:1:80)
  at Module._compile (module.js:435:26)
  at Object.Module._extensions..js (module.js:442:10)
  at Module.load (/root/indico/ext_modules/fullcalendar/node_modules/grunt/node_modules/coffee-script/lib/coffee-script/register.js:45:36)
  at Function.Module._load (module.js:311:12)
  at Module.require (module.js:366:17)
  at require (module.js:385:17)
  at Object.<anonymous> (/root/indico/ext_modules/fullcalendar/node_modules/grunt/node_modules/grunt-legacy-util/index.js:25:18)
  at Module._compile (module.js:435:26)
  at Object.Module._extensions..js (module.js:442:10)
  at Module.load (/root/indico/ext_modules/fullcalendar/node_modules/grunt/node_modules/coffee-script/lib/coffee-script/register.js:45:36)
  at Function.Module._load (module.js:311:12)
  at Module.require (module.js:366:17)
  at require (module.js:385:17)
  at Object.<anonymous> (/root/indico/ext_modules/fullcalendar/node_modules/grunt/lib/grunt.js:17:12)
  at Module._compile (module.js:435:26)
  at Object.Module._extensions..js (module.js:442:10)
  at Module.load (module.js:356:32)
  at Function.Module._load (module.js:311:12)
  at Module.require (module.js:366:17)
  at require (module.js:385:17)
  at Object.<anonymous> (/root/indico/ext_modules/node_env/lib/node_modules/grunt-cli/bin/grunt:44:1)
  at Module._compile (module.js:435:26)
  at Object.Module._extensions..js (module.js:442:10)
  at Module.load (module.js:356:32)
  at Function.Module._load (module.js:311:12)
  at Function.Module.runMain (module.js:467:10)
  at startup (node.js:136:18)
  at node.js:963:3


Fatal error: local() encountered an error (return code 1) while executing 'grunt lumbar:build'

Aborting.