Gulp Build Issue with Inject

[Wasperex]

I recently installed blur-admin but I am having difficulties initiating the app via the gulp serve command. The problem seems to relate to the inject task that runs after the 'html' task in build.js. Below is the error that I keep getting:

$ gulp serve
assert.js:42
throw new errors.AssertionError({
^

AssertionError [ERR_ASSERTION]: Task function must be specified
at Gulp.set [as _setTask] (D:\Git Repo\blur-admin\node_modules\undertaker\lib\set-task.js:10:3)
at Gulp.task (D:\Git Repo\blur-admin\node_modules\undertaker\lib\task.js:13:8)
at Object. (D:\Git Repo\blur-admin\gulp\build.js:29:6)
at Module._compile (module.js:652:30)
at Object.Module._extensions..js (module.js:663:10)
at Module.load (module.js:565:32)
at tryModuleLoad (module.js:505:12)
at Function.Module._load (module.js:497:3)
at Module.require (module.js:596:17)
at require (internal/module.js:11:18)

I have tried updating the code with the latest syntax but this results in a different issue related to the 'inject' task definition. Here is the rewritten segment of the code:

gulp.task('html', gulp.series(['inject', 'partials']), function a ()

Here is the corresponding error message:
$ gulp serve
assert.js:42
throw new errors.AssertionError({
^

AssertionError [ERR_ASSERTION]: Task never defined: inject
at getFunction (D:\Git Repo\blur-admin\node_modules\undertaker\lib\helpers\normalizeArgs.js:15:5)
at map (D:\Git Repo\blur-admin\node_modules\arr-map\index.js:20:14)
at normalizeArgs (D:\Git Repo\blur-admin\node_modules\undertaker\lib\helpers\normalizeArgs.js:22:10)
at Gulp.series (D:\Git Repo\blur-admin\node_modules\undertaker\lib\series.js:13:14)
at Object. (D:\Git Repo\blur-admin\gulp\build.js:29:24)
at Module._compile (module.js:652:30)
at Object.Module._extensions..js (module.js:663:10)
at Module.load (module.js:565:32)
at tryModuleLoad (module.js:505:12)
at Function.Module._load (module.js:497:3)

I am wondering whether this is an issue with any of my package versions or with the task definitions.

[boethius]

I have run into the same issue, also updated the syntax for the gulp task doesn't work.

[boethius]

this gulp.task('html', gulp.series(['inject', 'partials']), function a () needs to be
gulp.task('html', gulp.series('inject', 'partials', function (){ ... }));

[kuccilim]

@boethius, would you mind to share gulp/* folder to me?
Few days ago updated Blur Admin to gulp 4 and node 10, til now has not successful build/serve this project.

[pradeepupadhyay]

@boethius, would you mind to share gulp/* folder to me?
Few days ago updated Blur Admin to gulp 4 and node 10, til now has not successful build/serve this project.

Any Success @kuccilim ? I have just updated my gulp and stuck on same issue :(