Jekyll Build Error Mac

[Micah789]

Hi i am having a issue with jekyll, with this error message:

[20:16:39] Using gulpfile ~/Desktop/micahkwaka.co.uk/gulpfile.js
[20:16:39] Starting 'sass'...
[20:16:39] Starting 'jekyll-build'...
[20:16:39] Starting 'watch'...
[20:16:39] Finished 'watch' after 111 ms
[20:16:39] 'jekyll-build' errored after 135 ms
[20:16:39] Error: 127
at formatError (/usr/local/lib/node_modules/gulp/bin/gulp.js:169:10)
at Gulp. (/usr/local/lib/node_modules/gulp/bin/gulp.js:195:15)
at emitOne (events.js:77:13)
at Gulp.emit (events.js:169:7)
at Gulp.Orchestrator._emitTaskDone (/Users/micahkwaka/Desktop/micahkwaka.co.uk/node_modules/gulp/node_modules/orchestrator/index.js:264:8)
at /Users/micahkwaka/Desktop/micahkwaka.co.uk/node_modules/gulp/node_modules/orchestrator/index.js:275:23
at finish (/Users/micahkwaka/Desktop/micahkwaka.co.uk/node_modules/gulp/node_modules/orchestrator/lib/runTask.js:21:8)
at ChildProcess.cb (/Users/micahkwaka/Desktop/micahkwaka.co.uk/node_modules/gulp/node_modules/orchestrator/lib/runTask.js:29:3)
at emitTwo (events.js:92:20)
at ChildProcess.emit (events.js:172:7)
[20:16:39] Finished 'sass' after 445 ms
[20:16:39] Starting 'sass'...
[20:16:40] Finished 'sass' after 186 ms

Anyone help?