Hi there! I've added the `browser` as a target for my MPP project and I'm getting this error: ```04 ...

# multiplatform

[addamsson]

Hi there! I've added the browser as a target for my MPP project and I'm getting this error:

04 03 2020 16:26:34.829:ERROR [launcher]: No binary for ChromeHeadless browser on your platform.

  Please, set "CHROME_BIN" env variable.

What can I do to fix this?
I tried to add chrome as the docs states:

browser {
    testTask {
        useKarma {
            useChrome()
        }
    }
}

but I get the same error. How can I make my builds run out of the box (without having to set env variables)?

[Eivind Nilsbakken]

If you don't use browser tests, you can disable them with browser { testTask { enabled = false } }. That way, the browser task shouldn't look for a browser binary.

[addamsson]

thanks 👍

[Eivind Nilsbakken]

If you are actually running karma tests though, that's not what you want, but there are a bunch of other pre-configured browsers, according to: https://kotlinlang.org/docs/reference/js-project-setup.html#configuring-test-task

[addamsson]

It worked!

[addamsson]

👍

[addamsson]

I only have common tests, so JUnit is fine

[Ilya Goncharov [JB]]

You need Chrome by default to run tests, you need change browser with useFirefox for example
Or even you can try to use useMocha() instead of useKarma

[addamsson]

how would this work in a CI environment?

[Ilya Goncharov [JB]]

Mocha will be executed in node environment, karma - is in browser, so browser should be installed in your ci environment

[addamsson]

what if that's not an option?

[addamsson]

for example CircleCI is a headless environment

[Eivind Nilsbakken]

On CircleCI you can easily run your pipelines in custom Docker containers with Chromium headless installed. There are hundreds of Docker images on Docker Hub for this exact scenario.

[addamsson]

oh, that's nice

[addamsson]

thanks

[Eivind Nilsbakken]

If you need Docker-in-Docker, ie build Docker images in a pipeline, you might want to use one of CircleCI's pre-configured images though.

[Eivind Nilsbakken]

Most modern CI platforms support this. GitLab, Travis, GitHub Actions, etc.

[addamsson]

not right now, but I'll take a look into it if the need arises

[Eivind Nilsbakken]

If so, circleci/node:latest-browsers might be a good fit. It has Firefox and Chrome installed (and node+npm, of course).

[addamsson]

👍

[addamsson]

thanks