guild build error

gistfile1.txt

[12:10:53] Using gulpfile ~/Copy/dev/meta-id-client/gulpfile.js
[12:10:53] Starting 'clean'...
[12:10:53] Finished 'clean' after 1.74 ms
[12:10:53] Starting 'less'...
[12:10:53] Starting 'uglify:layout'...
[12:10:53] Starting 'usemin:fonts'...
[12:10:53] Starting 'imagemin'...
[12:10:53] Starting 'html'...
[12:10:53] Starting 'html:pages'...
[12:10:53] Finished 'uglify:layout' after 365 ms
[12:10:53] Finished 'less' after 751 ms
[12:10:53] Starting 'usemin'...
[12:10:54] Finished 'html' after 814 ms

events.js:72
        throw er; // Unhandled 'error' event
              ^
ReferenceError: Promise is not defined
    at /home/decko/Copy/dev/meta-id-client/node_modules/gulp-usemin/lib/htmlBuilder.js:20:16
    at Array.map (native)
    at module.exports (/home/decko/Copy/dev/meta-id-client/node_modules/gulp-usemin/lib/htmlBuilder.js:19:25)
    at Transform._transform (/home/decko/Copy/dev/meta-id-client/node_modules/gulp-usemin/index.js:17:9)
    at Transform._read (/home/decko/Copy/dev/meta-id-client/node_modules/gulp-usemin/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:184:10)
    at Transform._write (/home/decko/Copy/dev/meta-id-client/node_modules/gulp-usemin/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:172:12)
    at doWrite (/home/decko/Copy/dev/meta-id-client/node_modules/gulp-usemin/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:237:10)
    at writeOrBuffer (/home/decko/Copy/dev/meta-id-client/node_modules/gulp-usemin/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:227:5)
    at Transform.Writable.write (/home/decko/Copy/dev/meta-id-client/node_modules/gulp-usemin/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:194:11)
    at write (/home/decko/Copy/dev/meta-id-client/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:623:24)