Error: Invalid CSS after "xxx": expected 1 selector or at-rule, was "{}"

在VSCode中编译sass文件时，出现报错：Error: Invalid CSS after "xxx": expected 1 selector or at-rule, was "{}"，在电脑中sass环境也装了,在编辑器中也装了Easy sass插件，后来发现文件的后缀名写错了，，将sass改成scss就解决了