原因是 melpa 开始强制要求必须有与 package 同名的 el 文件，Kazuhiro Ito 说不能接受加一个空的文件， 而且 melpa 上的包是別人放上去的，他宁可给这些包改名，melpa 方面的 tarsius 说 melpa 上就你这家没满足这要求了，你不想改反正自由软件我们改一个版本也㣔
如果在意是否能得到最新版本的 wanderlust，建议不要从 melpa 安装。
Melpa could patch your packages to add the
<name>.elon our side. In fact the Emacsmirror (which I also maintain) has been adding these files for years. So all we would have to do is change the Melpa recipes to get these packages from, e.g., GitHub - emacsmirror/wanderlust: Yet Another Message Interface on Emacsen instead of from the real upstream repository. The repositories on the mirror are updated about once a week and the additional “patch” commits on the mirror are automatically rebased in the process.
如果是一周同步一次问题好像也不是很大？