WinEdt 警告: Some characters were lost while converting from UNICODE to CP 0. Save to file anyway?

WinEdt 在生成pdf時彈出 Some characters were lost while converting from UNICODE to CP 0. Save to file anyway?
y/n

爲啥呢，百度一下得知是WinEdt中含有中文字符導致的。

因爲在word裏面複製中文到latex中時有的中文變成了（框框字符）

刪掉就行了

（其實我都沒管直點了確定）