Liquid syntax error

[Hardik Nanda]

Incremental build: disabled. Enable with --incremental Generating... Liquid Exception: Liquid syntax error (line 6): Tag '{%- assign date_format = site.date_format | default: "%B %d, %Y" -%}' was not properly terminated with regexp: /\%\}/ in _includes/meta.html, included in _layouts/post.html jekyll 3.1.6 | Error: Liquid syntax error (line 6): Tag '{%- assign date_format = site.date_format | default: "%B %d, %Y" -%}' was not properly terminated with regexp: /\%\}/

Above is the error i get when i run jekyll serve.