Liquid Warning: Liquid syntax error :unexpected character when I jekyll serve

Question

the error happened when I enter jekyll serve

Answer 1

Unexpected character & :

You want to use and rather than && .

site.duoshuo_share and site.duoshuo_username

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Unexpected character { :

The error is actually the way you are referring to a variable. You can't use hyphens like that and you dont need to use {{ }} inside a {% %} tag.

Assuming it's in an if tag:

{% if tag[1].size > site.featured_condition_size %}

Or:

{% if tag[1].size > site['featured-condition-size'] %}