T290 Course npm run build-dev error "Task never defined"

What directory are you running the command in?

Is it 24R2 or is it 25R1 you are having issue with.

for 24R2 syntax uses two dashes (--) like

npm run build-dev -- --env screenIds=RS201000

However for 25R1, you should use three dashes:

npm run build-dev --- --env screenIds=RS201000

I think T290 course was developed with 24R2 and might have old documentation. Maybe try and see if it helps.

​@RohitRattan88 - I’ve been using two in 25 R1 and it’s been working fine

​@RohitRattan88 I tried using three dashes and the command succeeded, but it took as long to complete as it took without the parameters, suggesting that the filter had no effect.

The T290 course documentation is labelled 2024R2.

​@darylbowman I’ve tried from the FrontendSources folder and also from the screen sub-directory.

In my experience, you can run build-dev from FrontendSources, but a specific screen needs to be in FrontendSources\screens (I think)

Thanks ​@darylbowman. That’s seems to move me forward. I get a different error now :-)

[webpack-cli] Failed to load 'C:\Program Files\Acumatica ERP\ModernUI_T290\FrontendSources\screen\webpack.config.ts' config

[webpack-cli] SyntaxError [ERR_UNSUPPORTED_TYPESCRIPT_SYNTAX]:   x The angle-bracket syntax for type assertions, `<T>expr`, is not supported in type strip mode. Instead, use the 'as' syntax: `expr as T`.

     ,-[426:1]

 423 |                         ];

 424 |                         // disabling screen info cache for customizations

 425 |                         options.cache = undefined;

 426 | ,->                     options.roots = <any> {

 427 | |                           customizationRoot: tenantFolder,

 428 | |                           screensRoot: "src/screens"

 429 | `->                     };

 430 |                         options.watch = env.watch;

 431 |                     }

 431 |                 }

     `----

    at parseTypeScript (node:internal/modules/typescript:67:15)

Any ideas?

(node --version  gives v23.11.0
 npm --version   gives 10.9.2)

That looks like an Acumatica question. I don’t think I can help with that.

I’ve abandoned this attempt. Now getting ERR_MODULE_NOT_FOUND when running npm get modules, and npm run build-dev.

​@RohitRattan88  3 dashes.  Thank you!