The function does not work after the transition to Gulp 3.9.1 to 4.0.0

[Alecto]

In gulp 3.9.1, the code worked

var processBuild = function (destUrl, newest) {
  var buildCss = gulp.src([path.cssFiles])
    .pipe(gulpif(newest, changed(path.tempFolder + path.cssFolder)))
    .pipe(gulp.dest(destUrl + path.cssFolder));

  var buildCssMap = gulp.src([path.cssFolder + '**/*.map'])
    .pipe(gulpif(newest, changed(path.tempFolder + path.cssFolder)))
    .pipe(gulp.dest(destUrl + path.cssFolder));

  var buildHtml = gulp.src([path.htmlFiles])
    .pipe(gulpif(newest, changed(path.tempFolder + path.htmlFolder)))
    .pipe(gulp.dest(destUrl + path.htmlFolder));

  var buildJs = gulp.src([path.jsFiles])
    .pipe(gulpif(newest, changed(path.tempFolder + path.jsFolder)))
    .pipe(gulp.dest(destUrl + path.jsFolder));
};

gulp.task('temp-build', function () {
  processBuild(path.tempFolder, false)
});

gulp.task('dist-build', function () {
  processBuild(path.distFolder, false)
});

gulp.task('upload-build', function () {
  processBuild(path.uploadFolder, true)
});

after switching to gulp 4.0.0 it does not work with error:

[20:08:06] The following tasks did not complete: temp-build
[20:08:06] Did you forget to signal async completion?

Please help me figure out what the problem is.

[chmontgomery]

Are you using the gulp4 branch? https://github.com/chmontgomery/gulp-help/tree/gulp4

Because the master-branch only works with Gulp V3