问题是由旧的 campass 库( compass-0.11.5 )引起的，该库在处理透明关键字时存在问题. 它已在最新的Campass库中修复.

The issue is caused by the old campass library (compass-0.11.5) which has an issue in handling the transparent keyword. It got fixed in the latest campass library.

我遵循了本指南，并且解决了这个问题:

I followed this guide and i solved the problem: Resolve the "Sass::SyntaxError: Invalid CSS" error in Liferay 6.1