hugo+gitpage Event 主题，在执行 hugo 命令的时候出现错误

[rain423]

错误 log 如下： hugo

Building sites … ERROR 2019/05/01 10:46:40 in .Render: Failed to execute template "post/summary.html": "/Users/yumryang/Blog/yusite/themes/even/layouts/post/summary.html:8:19": execute of template failed: template: post/summary.html:8:19: executing "post/summary.html" at <.>: range can't iterate over Android Total in 101 ms

Error: Error building site: failed to render pages: render of "page" failed: "/Users/yumryang/Blog/yusite/themes/even/layouts/post/single.html:11:21": execute of template failed: template: post/single.html:11:21: executing "content" at <.>: range can't iterate over Android

是怎么回事啊？