Mention the pitfalls for using a CSS Preprocessor like Sass?

1.	Mention the pitfalls for using a CSS Preprocessor like Sass?
Answer» An EXTRA tool for the preprocessor is required. Preprocessor files can not be performed DIRECTLY on the browser. Slow re-compilation of the preprocessor. For the preprocessor, you OUGHT to KNOW extra tools, which IMPROVE the learning curve of CSS.

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