您可能遇到了 Windows 的一个怪癖。记事本默认会以 .txt 扩展名保存文件。请检查您的文件是否实际上被命名为 custom.sty.txt 和 custom.vrs.txt。如果是,请将它们重命名为 custom.sty 和 custom.vrs,去掉末尾的 .txt。
Windows 可能还隐藏了扩展名,因此看起来像 custom.sty 的文件实际上可能是 custom.sty.txt。
在文件查看器中,您可以确保看到完整的文件名。点击“查看”,然后选择“显示”,并勾选“文件扩展名”。

You may be blocked by a Windows quirk. Notepad by default will save a file with the .txt extension. Check if your files are actually named custom.sty.txt and custom.vrs.txt. If they are, rename them to custom.sty and custom.vrs without the .txt on the end.
Windows may also be hiding the extension from you so what looks like custom.sty is really custom.sty.txt.
In File Viewer, you can make sure you are seeing the full file name. Click "View", then choose "show" and select "File name extensions".

机器翻译自 English