Cannot find module 'litecore-build'

[hamadjutt]

[email protected] test /Users/arslan/Sites/litecore-explorers
gulp test

internal/modules/cjs/loader.js:638
throw err;
^

Error: Cannot find module 'litecore-build'
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
at Function.Module._load (internal/modules/cjs/loader.js:562:25)
at Module.require (internal/modules/cjs/loader.js:692:17)
at require (internal/modules/cjs/helpers.js:25:18)
at Object. (/Users/arslan/Sites/litecore-explorers/gulpfile.js:3:13)
at Module._compile (internal/modules/cjs/loader.js:778:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)
npm ERR! Test failed. See above for more details.