https://bbs.deepin.org/post/201911 我给你改一下标题哈,不然会被以为是咨询贴
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具体错误如下:
解决办法如下:
1. 将/etc/apt/sources.list修改为默认15.11的源:
2. 安装dirmngr
3. 添加公钥:
4. 修改源文件升级V20:
5. sudo apt-get update
6. sudo apt-get dist-upgrade