vim E303错误信息解决记录

用VIM打开一个文件时，出现一下错误信息提示：
E303: Unable to open swap file for "[No Name]", recovery impossible

在命令行模式下执行：
:help E303
输出相关信息如下：
Unable to open swap file for "{filename}", recovery impossible
 
Vim was not able to create a swap file.  You can still edit the file, but if
Vim unexpected exits the changes will be lost.  And Vim may consume a lot of
memory when editing a big file.  You may want to change the 'directory' option
to avoid this error.  See |swap-file|.

继续在命令行模式下执行：
:set directory?
输出相关信息如下：
directory=~/.vim/backups

问题原来如此，在~/.vim/目录下没有backups目录

mkdir ~/.vim/backups

重试错误提示信息果然消失~