gulp.lastRun is not a function [2]

[uMaxmaxmaximus]

var time = gulp.lastRun('build-coffee');

ERROR: gulp.lastRun is not a function

How to know last run time?
How to work this code:

gulp.task 'build-coffee', =>
    gulp.src './modules/**/*.coffee', since: gulp.lastRun('build-coffee')
    .pipe coffee()
    .pipe gulp.dest './build/'

questions

• How to know last run time?
• How to work this code?
• Which version I should use?

[phated]

Install 4.0

Support questions should be directed to StackOverflow.

[uMaxmaxmaximus]

Support questions should be directed to StackOverflow.

I did not know, thks