无法在 Ubuntu-19.10 上安装 libdouble-conversion1

Question

当我尝试从deb文件安装 Cisco 数据包跟踪器时，出现以下错误：

Unpacking packettracer (7.3.0) ...
dpkg: dependency problems prevent configuration of packettracer:
 packettracer depends on libdouble-conversion1; however:
  Package libdouble-conversion1 is not installed.
 packettracer depends on qt-at-spi; however:
  Package qt-at-spi is not installed.

dpkg: error processing package packettracer (--install):
 dependency problems - leaving unconfigured
Processing triggers for gnome-menus (3.32.0-1ubuntu1) ...
Processing triggers for desktop-file-utils (0.24-1ubuntu1) ...
Processing triggers for mime-support (3.63ubuntu1) ...
Processing triggers for shared-mime-info (1.10-1) ...
Errors were encountered while processing:
 packettracer

然后我尝试libdouble-conversion1使用 command安装sudo apt-get install libdouble-conversion1。它给出了以下错误

Package libdouble-conversion1 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

E: Package 'libdouble-conversion1' has no installation candidate

Answer 1

1. 首先下载这些包：

   1. libdouble-conversion1 ( http://ftp.br.debian.org/debian/pool/main/d/double-conversion/libdouble-conversion1_3.1.0-3_amd64.deb )
   2. qt-at-spi ( http://ftp.br.debian.org/debian/pool/main/q/qt-at-spi/qt-at-spi_0.4.0-9_amd64.deb )
   3. libjpeg-turbo8 ( http://archive.ubuntu.com/ubuntu/pool/main/libj/libjpeg-turbo/libjpeg-turbo8_2.0.3-0ubuntu1_amd64.deb )
   4. libjpeg8 ( http://archive.ubuntu.com/ubuntu/pool/main/libj/libjpeg8-empty/libjpeg8_8c-2ubuntu8_amd64.deb )
   5. 数据包追踪器 7.3

2. 打开终端并将目录更改为“Downloads”（下载的软件包所在的位置）

3. 使所有下载的包可执行（chmod +x packagename）

4. 复制/home/username/.config/mimeapps.list到/root/.config/

5. 安装 libdouble-conversion1 和 qt-at-spi 软件包 ( sudo dpkg -i packagename)

6. 安装 libjpeg-turbo8 软件包。在这里，您可能会发现库冲突错误。如果是，请删除旧的 ( sudo apt purge packagename)。将会出现一些警告。只需输入此命令（sudo apt --fix-broken install）。然后，再次移除。现在，您可以再次安装 libjpeg-turbo8 软件包。

7. 安装 libjpeg8 软件包。

8. 最后，您可以安装 Packet Tracer 7.3 软件包。\

祝你好运