SASS cannot be compiled to CSS in a project

[petar-i-todorov]

Describe the bug
In a Kendo Bootstrap project, after changing the value of $kendo-font-size to any new value (e.g., 2rem or 14px), the project gives a "There are errors in SASS and it cannot be compiled to CSS." error, and the export functionality doesn't work.

To Reproduce
Steps to reproduce the behavior:

1. Create a new Kendo Bootstrap project.
2. Update the value of $kendo-font-size to any new value (e.g., 2rem, or 14px).
3. Refresh the page.

Actual Results
There are errors as the SASS cannot be compiled into CSS. The export functionality doesn't work either.

Expected behavior
There are no errors, and the export functionality works.

Additional context
Changing the value back to the default (1rem) doesn't make the errors fade away. However, exporting the metadata from the affected project and importing it into a newly created one resolves the issue.

Reported through t.1672625.

[NickIliev]

+1 from 1673108