Client side less compilation not working

[torhoehn]

Preconditions (*)

1. Magento ver. 2.3.0-beta23
2. PHP 7.1.22

Steps to reproduce (*)

1. Set Magento into developer mode
2. Login into Backend and navigate to Stores -> Configuration -> Advanced -> Developer -> Frontend Development Workflow
3. Set Workflow type to Client side less compilation
4. Load Storefront

Expected result (*)

1. Theme should be rendered correctly

Actual result (*)

1. SyntaxError: Cannot set property 'important' of undefined in styles-m.css

[magento-engcom-team]

Hi @torhoehn. Thank you for your report. To help us process this issue please make sure that you provided the following information:

• [x] Summary of the issue
• [x] Information on your environment
• [x] Steps to reproduce
• [x] Expected and actual results

Please make sure that the issue is reproducible on the vanilla Magento instance following Steps to reproduce. To deploy vanilla Magento instance on our environment, please, add a comment to the issue:

@magento-engcom-team give me $VERSION instance

where $VERSION is version tags (starting from 2.2.0+) or develop branches (for example: 2.3-develop). For more details, please, review the Magento Contributor Assistant documentation.

@torhoehn do you confirm that you was able to reproduce the issue on vanilla Magento instance following steps to reproduce?

• [ ] yes
• [x] no

[torhoehn]

@magento-engcom-team give me 2.3-develop instance

[magento-engcom-team]

Hi @torhoehn. Thank you for your request. I'm working on Magento 2.3-develop instance for you

[magento-engcom-team]

Hi @torhoehn, here is your Magento instance. Admin access: http://34.228.235.121/i-19115-2-3-develop//admin Login: admin Password: 123123q Instance will be terminated in up to 3 hours.

[magento-engcom-team]

Hi @engcom-backlog-nazar. Thank you for working on this issue. In order to make sure that issue has enough information and ready for development, please read and check the following instruction: :point_down:

• [x] 1. Verify that issue has all the required information. (Preconditions, Steps to reproduce, Expected result, Actual result).

  Details

  If the issue has a valid description, the label Issue: Format is valid will be added to the issue automatically. Please, edit issue description if needed, until label Issue: Format is valid appears.

• [x] 2. Verify that issue has a meaningful description and provides enough information to reproduce the issue. If the report is valid, add Issue: Clear Description label to the issue by yourself.

• [ ] 3. Add Component: XXXXX label(s) to the ticket, indicating the components it may be related to.

• [ ] 4. Verify that the issue is reproducible on 2.3-develop branch

  Details

  - Add the comment @magento-engcom-team give me 2.3-develop instance to deploy test instance on Magento infrastructure.
  - If the issue is reproducible on 2.3-develop branch, please, add the label Reproduced on 2.3.x.
  - If the issue is not reproducible, add your comment that issue is not reproducible and close the issue and stop verification process here!

• [ ] 5. Verify that the issue is reproducible on 2.2-develop branch.

  Details

  - Add the comment @magento-engcom-team give me 2.2-develop instance to deploy test instance on Magento infrastructure.
  - If the issue is reproducible on 2.2-develop branch, please add the label Reproduced on 2.2.x

• [ ] 6. Add label Issue: Confirmed once verification is complete.

• [ ] 7. Make sure that automatic system confirms that report has been added to the backlog.

[torhoehn]

@magento-engcom-team Unfortunately it's working vanilla Magento instance.

[ghost]

Hi @torhoehn seem like this already fixed in 2.3-dev branch, i'm also cannot reproduce on 2.3-dev. If you like to update this please reopen the issue.

[torhoehn]

@engcom-backlog-nazar Do you know if something has changed or an idea where I have to search for that? So I would be able to apply a fix manually in our project.

[ghost]

@torhoehn Sorry i'm can't find where this was fixed, i was try search in history commits, but not found any related commits

[torhoehn]

@engcom-backlog-nazar We updated to Magento ver. 2.3.0-beta32. Now it's working again.