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问题根源

tag-icon • tag-icon apt package-management dependencies
问题根源

运行后sudo apt-get install libgmp-dev我得到：

以下软件包具有未满足的依赖性：libgmp-dev：依赖：libgmp10（= 2：6.1.2+dfsg-1）但需要安装 2：6.1.2+dfsg-2 E：无法纠正问题，您持有损坏的软件包。

然后尝试安装libgmp10：

sudo apt-get install libgmp10
...
libgmp10 is already the newest version (2:6.1.2+dfsg-2).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

问题根源

我需要安装ruby-dev包运行后给出以下输出sudo apt install ruby-dev：

The following packages have unmet dependencies:
 ruby-dev : Depends: ruby2.3-dev but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

然后继续sudo apt install ruby2.3-dev：

The following packages have unmet dependencies:
 ruby2.3-dev : Depends: libgmp-dev but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

然后当我尝试运行原始命令时：sudo apt install libgmp-dev有了上述输出，有什么想法吗？

附加信息

  • Ubuntu 版本：artful

  • apt-cache policy libgmp-dev给出：

    libgmp-dev:
  Installed: (none)
  Candidate: 2:6.1.2+dfsg-1
  Version table:
     2:6.1.2+dfsg-1 500
        500 http://uy.archive.ubuntu.com/ubuntu artful/main amd64 Packages

  • apt-cache policy libgmp10：

        libgmp10:
      Installed: 2:6.1.2+dfsg-2
      Candidate: 2:6.1.2+dfsg-2
      Version table:
     *** 2:6.1.2+dfsg-2 100
            100 /var/lib/dpkg/status
         2:6.1.2+dfsg-1 500
            500 http://uy.archive.ubuntu.com/ubuntu artful/main amd64 Packages

答案1

rmadison命令显示libgmp10我安装的版本来自仿生的而不是来自巧。

$ rmadison libgmp10
 libgmp10 | 2:5.0.2+dfsg-2ubuntu1 | precise | amd64, armel, armhf, i386, powerpc
 libgmp10 | 2:5.1.3+dfsg-1ubuntu1 | trusty  | amd64, arm64, armhf, i386, powerpc, ppc64el
 libgmp10 | 2:6.1.0+dfsg-2        | xenial  | amd64, arm64, armhf, i386, powerpc, ppc64el, s390x
 libgmp10 | 2:6.1.2+dfsg-1        | artful  | amd64, arm64, armhf, i386, ppc64el, s390x
 libgmp10 | 2:6.1.2+dfsg-2        | bionic  | amd64, arm64, armhf, i386, ppc64el, s390x

解决方案

安装所使用的特定版本巧， 那是sudo apt-get install libgmp10=2:6.1.2+dfsg-1：

sudo apt-get install libgmp10=2:6.1.2+dfsg-1                                                              
...
The following packages will be DOWNGRADED:                                                                                              
  libgmp10                                                                                                                              
0 upgraded, 0 newly installed, 1 downgraded, 0 to remove and 0 not upgraded.                                                            
Need to get 240 kB of archives.                                                                                                         
After this operation, 4.096 B disk space will be freed.                                                                                 
Do you want to continue? [S/n] S                                                                                                        
Get:1 http://uy.archive.ubuntu.com/ubuntu artful/main amd64 libgmp10 amd64 2:6.1.2+dfsg-1 [240 kB]                                      
Fetched 240 kB in 1s (290 kB/s)                                                                                                         
dpkg: warning: downgrading libgmp10:amd64 from 2:6.1.2+dfsg-2 to 2:6.1.2+dfsg-1                                                         
...
Preparing to unpack .../libgmp10_2%3a6.1.2+dfsg-1_amd64.deb ...                                                                         
Unpacking libgmp10:amd64 (2:6.1.2+dfsg-1) over (2:6.1.2+dfsg-2) ...                                                                     
Setting up libgmp10:amd64 (2:6.1.2+dfsg-1) ...                                                                                          
Processing triggers for libc-bin (2.26-0ubuntu2.1) ...

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