And why I've got this errors when running tests? `...

# javascript

[Robert Jaros]

And why I've got this errors when running tests?

> Task :browserTest
12 12 2019 19:59:43.293:ERROR [preprocess]: Can not load "webpack", it is not registered!

  Perhaps you are missing some plugin?

12 12 2019 19:59:43.296:ERROR [preprocess]: Can not load "sourcemap", it is not registered!

[Ilya Goncharov [JB]]

Could you please copy your build/js/packages/<module-name>-tes/karma.config.js here?

[Robert Jaros]

karma.conf.js

karma.conf.js

[Ilya Goncharov [JB]]

Seems that it is ok, could you please clean project and then build it again?

If error will be reproduced, could you please share your project?

[Robert Jaros]

https://github.com/rjaros/js-plugin-test

[Robert Jaros]

could it be because of some devDependencies defined in package.json inside kvision jar's ?

[Robert Jaros]

karma version is being forced to 4.3.0

[Robert Jaros]

and I see the project without kvision dependencies uses 4.4.1

[Robert Jaros]

yes, I've fixed the issue by adding implementation(npm("karma","4.4.1")) to my build.gradle.kts and forcing the higher version

[Robert Jaros]

thank you for the inspiration :-)

[Ilya Goncharov [JB]]

You are right, different versions is key
But! NodeJS and yarn are able to resolve this situation, and they do, they put karma with 4.1.0 version in “local” node_modules of your module (build/js/packages/js-plugin-test-test/node_modules/karma) but plugins for Karma installed in “project” node_modules (build/js/node_modules)
And this version of karma run, but seems that in case of wildcard plugins (karma-* in karma.config.js ) Karma find plugins only in node_modules where it installed. And it seems that it is Karma’s defect, I investigate what can we do