Gulp 3.*
doesn't work on Node 12.*
or above. You have to downgrade Node, or upgrade Gulp.
If you are short on time, downgrade Node to
v11.*
or below; if you need newer features, and have time to possibly fix a load of broken dependencies, upgrade Gulp to4.*
or above!
As others have already mentioned, Gulp 3.*
is not supported on Node 12
or above, so you will have to downgrade your Node version to 11.*
or below, OR upgrade your Gulp to 4.0
.