我在安装 nginx-extras 时遇到问题，因为它似乎取决于 nginx-common 版本 1.1.19-1ubuntu0.2，但我正在另外安装（1.4.1-1ppa1~precise）。我需要那个 1.4.1 版本，因为我需要对 nginx 源代码进行一些新的更改。
当我跑步时，apt-cache show nginx-common我得到：
Package: nginx-common
Source: nginx
Version: 1.4.1-1ppa1~precise
Architecture: all
Maintainer: Kartik Mistry <kartik@debian.org>
Installed-Size: 210
Depends: lsb-base (>= 3.2-14)
Suggests: nginx-doc, fcgiwrap
Breaks: nginx (<< 0.8.54-4), nginx-extras (<< 0.8.54-4), nginx-full (<< 0.8.54-4), nginx-light (<< 0.8.54-4)
Replaces: nginx (<< 0.8.54-4), nginx-extras (<< 0.8.54-4), nginx-full (<< 0.8.54-4), nginx-light (<< 0.8.54-4)
Homepage: http://nginx.net
Priority: optional
Section: httpd
Filename: pool/main/n/nginx/nginx-common_1.4.1-1ppa1~precise_all.deb
Size: 77152
SHA256: fc513f97505ec4c37a819d8638386b142f395619bbb1b2e1a6f96c71e45ba77c
SHA1: 2893621a5d8d7a625f3e584e92df41410d48e3bd
MD5sum: 09ba7fdaf059d6ba96a24fd5cdb686bb
Description: small, powerful, scalable web/proxy server - common files
Nginx ("engine X") is a high-performance web and reverse proxy server
created by Igor Sysoev. It can be used both as a standalone web server
and as a proxy to reduce the load on back-end HTTP or mail servers.
.
This package contains base configuration files used by all versions of
nginx.
Package: nginx-common
Priority: optional
Section: universe/httpd
Installed-Size: 200
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Original-Maintainer: Kartik Mistry <kartik@debian.org>
Architecture: all
Source: nginx
Version: 1.1.19-1ubuntu0.2
Replaces: nginx (<< 0.8.54-4), nginx-extras (<< 0.8.54-4), nginx-full (<< 0.8.54-4), nginx-light (<< 0.8.54-4)
Depends: lsb-base (>= 3.2-14)
Breaks: nginx (<< 0.8.54-4), nginx-extras (<< 0.8.54-4), nginx-full (<< 0.8.54-4), nginx-light (<< 0.8.54-4)
Filename: pool/universe/n/nginx/nginx-common_1.1.19-1ubuntu0.2_all.deb
Size: 17478
MD5sum: e9f62c39292ae12072e955b3c53c36ff
SHA1: bafdca3b4ddb3a36f2a8ac701f99ac9c3c03ab11
SHA256: 7fc493c9e624b652890b66e8dc250b175a7c33219063e6faeb6131f4d765c20e
Description-en: small, but very powerful and efficient web server (common files)
Nginx (engine x) is a web server created by Igor Sysoev and kindly provided to
the open-source community. This server can be used as standalone HTTP server
and as a reverse proxy server before some Apache or another big server to
reduce load to backend servers by many concurrent HTTP-sessions.
.
This package contains base configuration files used across multiple packaged
versions of Nginx (nginx-full, nginx-light, nginx-extras, nginx-naxsi).
Homepage: http://nginx.net
Description-md5: 46d30b3e77cd81636fb13d66df5209bc
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Origin: Ubuntu
Package: nginx-common
Priority: optional
Section: universe/httpd
Installed-Size: 200
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Original-Maintainer: Kartik Mistry <kartik@debian.org>
Architecture: all
Source: nginx
Version: 1.1.19-1
Replaces: nginx (<< 0.8.54-4), nginx-extras (<< 0.8.54-4), nginx-full (<< 0.8.54-4), nginx-light (<< 0.8.54-4)
Depends: lsb-base (>= 3.2-14)
Breaks: nginx (<< 0.8.54-4), nginx-extras (<< 0.8.54-4), nginx-full (<< 0.8.54-4), nginx-light (<< 0.8.54-4)
Filename: pool/universe/n/nginx/nginx-common_1.1.19-1_all.deb
Size: 17756
MD5sum: 4d250e4ce04c0632149d26c0870ad2c8
SHA1: 360a48743d26977c4b87122e68e1a980526b7048
SHA256: c90436744a72726e29b7373b082434caec3942b87e2362053631de06ed665c4a
Description-en: small, but very powerful and efficient web server (common files)
Nginx (engine x) is a web server created by Igor Sysoev and kindly provided to
the open-source community. This server can be used as standalone HTTP server
and as a reverse proxy server before some Apache or another big server to
reduce load to backend servers by many concurrent HTTP-sessions.
.
This package contains base configuration files used across multiple packaged
versions of Nginx (nginx-full, nginx-light, nginx-extras, nginx-naxsi).
Homepage: http://nginx.net
Description-md5: 46d30b3e77cd81636fb13d66df5209bc
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Origin: Ubuntu
如您所见，安装了多个版本的 nginx。因此，如果 nginx-extras 软件包依赖于 1.1.19-1ubuntu0.2，并且我已经安装了它，为什么它仍然会抛出这个错误。我是否需要指定适用于我的 nginx 版本的 nginx-extras 版本？我将如何弄清楚那将是什么版本？
如果需要，我可以提供更多信息。谢谢！在输出的“Breaks”部分中，它报告了它破坏的 nginx-extras，我只是选择一个比那个更新的包吗？