With gulp-core-build@3.1.0, task construction fails

[abettadapur]

Calling new on a custom task that extends GulpTask fails with this error

TypeError: Class constructor GulpTask cannot be invoked without 'new'
    at new ResxToTsTask (C:\Users\alebet\git\pexweb6\packages\pextasks\lib\gulpTasks\ResxToTsTask.js:23:23)
    at Object.<anonymous> (C:\Users\alebet\git\pexweb6\packages\pexui\gulpfile.js:50:15)
    at Module._compile (module.js:573:30)
    at Object.Module._extensions..js (module.js:584:10)
    at Module.load (module.js:507:32)
    at tryModuleLoad (module.js:470:12)
    at Function.Module._load (module.js:462:3)
    at Module.require (module.js:517:17)
    at require (internal/module.js:11:18)
    at Liftoff.handleArguments (C:\Users\alebet\AppData\Roaming\npm\node_modules\gulp\bin\gulp.js:116:3)
    at Liftoff.<anonymous> (C:\Users\alebet\AppData\Roaming\npm\node_modules\gulp\node_modules\liftoff\index.js:198:16)
    at module.exports (C:\Users\alebet\AppData\Roaming\npm\node_modules\gulp\node_modules\flagged-respawn\index.js:17:3)
    at Liftoff.<anonymous> (C:\Users\alebet\AppData\Roaming\npm\node_modules\gulp\node_modules\liftoff\index.js:190:9)
    at C:\Users\alebet\AppData\Roaming\npm\node_modules\gulp\node_modules\liftoff\index.js:164:9
    at C:\Users\alebet\AppData\Roaming\npm\node_modules\gulp\node_modules\v8flags\index.js:110:14
    at C:\Users\alebet\AppData\Roaming\npm\node_modules\gulp\node_modules\v8flags\index.js:38:12

This was succeeding in earlier versions, only to fail in 3.1.0

[nickpape]

We updated the build target for our tooling to es6, which means we are now outputting es6 compliant-classes. For the project containing your gulp tasks, (pextasks), could you try updating the tsconfig.json target to es6? Note that es6 is compatible with NodeJS runtimes 6.5.11 and up.

[abettadapur]

Sure, I can try that. This should have been a v4 change though, no?

…

On Wed, Sep 27, 2017, 12:30 Nicholas Pape ***@***.***> wrote: We updated the build target for our tooling to es6, which means we are now outputting es6 compliant-classes. For the project containing your gulp tasks, (pextasks), could you try updating the tsconfig.json target to es6? Note that es6 is compatible with NodeJS runtimes 6.5.11 and up. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#379 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ACTcNcW_kT_0mb71jqyEXnZb6jMZzlBPks5smqJigaJpZM4PhCry> .

[nickpape]

Yes, it should have been. I'm going to close this issue for now, however.