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我已经安装了程序，但是当我要升级时，它找不到他

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我已经安装了程序，但是当我要升级时，它找不到他

我已经安装了 youtube-dl ：

# youtube-dl
Usage: youtube-dl [OPTIONS] URL [URL...]

youtube-dl: error: You must provide at least one URL.
Type youtube-dl --help to see a list of all options.

但是当我用 --extract-audio --audio-format mp3 [URL] 运行它时，它以

WARNING: 0g7KawdsVSQ: writing DASH m4a. Only some players support this container. Install ffmpeg or avconv to fix this automatically.
ERROR: ffprobe or avprobe not found. Please install one.

当我想升级 youtube-dl 软件包时，要安装其他文件：

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... E: Unable to locate package youtube-dl

当我想安装 ffmpeg 时：

# apt-get install ffmpeg
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package ffmpeg is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

一些细节：

  • 使用 Kali GNU/Linux 2.0 (sana) 64 位。

  • 我正在尝试使用命令进行升级：apt-get upgrade youtube-dl

>   
> 
>  # apt-cache policy youtube-dl ffmpeg
> 
>     
> 
> > ffmpeg:
> >       Installed: (none)
> >       Candidate: (none)
> >       Version table:
> >     N: Unable to locate package youtube-dl

# apt-cache policy

Package files:
 100 /var/lib/dpkg/status
     release a=now
 500 http://security.kali.org/kali-security/ sana/updates/non-free amd64 Packages
     release o=Kali,a=kali-current,n=sana,c=non-free
     origin security.kali.org
 500 http://security.kali.org/kali-security/ sana/updates/contrib amd64 Packages
     release o=Kali,a=kali-current,n=sana,c=contrib
     origin security.kali.org
 500 http://security.kali.org/kali-security/ sana/updates/main amd64 Packages
     release o=Kali,a=kali-current,n=sana,c=main
     origin security.kali.org
Pinned packages:

EDID 2：来源.列表

# 

# deb cdrom:[Debian GNU/Linux 2.0 _Sana_ - Official Snapshot amd64 LIVE/INSTALL Binary 20150811-08:02]/ sana contrib main non-free

#deb cdrom:[Debian GNU/Linux 2.0 _Sana_ - Official Snapshot amd64 LIVE/INSTALL Binary 20150811-08:02]/ sana contrib main non-free

deb http://security.kali.org/kali-security/ sana/updates main contrib non-free
deb-src http://security.kali.org/kali-security/ sana/updates main contrib non-free

答案1

您的sources.list.

看Kali resources.list 存储库，其中说：

在 Kali Linux 的标准、全新安装中， /etc/apt/sources.list 中应该有以下两个条目：

deb http://http.kali.org/kali sana main non-free contrib
deb http://security.kali.org/kali-security sana/updates main contrib non-free

您似乎有第二行，但没有第一行。检查你的sources.list。

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