"scripts": {
"start": "gulp"

error:   Error: Cannot find module '/opt/run/snapshot/package/gulp'
error:       at Function.Module._resolveFilename (module.js:338:15)
error:       at Function.Module._load (module.js:280:25)
error:       at Function.Module.runMain (module.js:497:10)
error:       at startup (node.js:119:16)
error:       at node.js:906:3