执行“恢复数据库”操作后,就能删了。
【亲测有效】来自calibre开发者大佬的解决法:
Kovid Goyal (kovid) wrote on 2022-07-17:
That indicates your calibre database is corrupted. You can rebuild it by
clicking the library icon in the main calibre toolbar, and choosing
library maintenance->restore database.
具体步骤可以看这里:
https://kazelife.com/how-to-fix-corrupterror-database-disk-image-is-malformed-in-calibre/