无法在Ubuntu-19.10上安装Can双转换1

Question

当我试图从deb文件安装Cisco数据包跟踪程序时，它给出了以下错误：

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，我尝试使用命令libdouble-conversion1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. 先下载这些软件包：
   1. libdouble双转换1 (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-涡轮8 (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-2 ubuntu8_amd64.deb)
   5. 包追踪器7.3

2. 打开终端并将目录更改为下载(如果有下载的包)
3. 使所有下载的包可执行(chmod +x packagename)
4. 将/home/username/.config/mimeapps.list复制到/root/.config/
5. 安装spi双转换1和qt-at-spi包(sudo dpkg -i packagename)
6. 安装libjpeg-涡轮8封装。在这里，您可能会发现库冲突错误。如果是的话，删除旧的(sudo apt purge packagename)。会有一些warning.Just类型的这个命令(sudo apt --fix-broken install)。然后，再移除。现在，您可以再次安装libjpeg-涡轮8软件包。
7. 安装libjpeg8软件包。
8. 最后，您可以安装package 7.3软件包。

祝好运

Answer 2

您可以使用来自其他版本的包：

wget http://mirrors.kernel.org/ubuntu/pool/main/d/double-conversion/libdouble-conversion1_2.0.1-4ubuntu1_amd64.deb
sudo apt install ./libdouble-conversion1_2.0.1-4ubuntu1_amd64.deb
wget http://mirrors.kernel.org/ubuntu/pool/main/q/qt-at-spi/qt-at-spi_0.4.0-3_amd64.deb
sudo apt install ./qt-at-spi_0.4.0-3_amd64.deb

然后，从终端安装数据包跟踪器：

sudo apt-get install <absolute/path/to/your/package>

Answer 3

下载数据包跟踪程序后，我尝试用sudo dpkg -i PacketTracer_730_amd64.deb安装它，得到了以下内容：

dpkg: dependency problems prevent configuration of packettracer:
 packettracer depends on qt-at-spi; however:
  Package qt-at-spi is not installed.

当我试图安装qt-at-spi时，我收到了以下消息

Reading package lists... Done
Building dependency tree       
Reading state information... Done
You might want to run 'apt --fix-broken install' to correct these.
The following packages have unmet dependencies:
 qt-at-spi : Depends: libqt4-dbus (>= 4:4.8.0) but it is not going to be installed
             Depends: libqtcore4 (>= 4:4.8~) but it is not going to be installed
             Depends: libqtgui4 (>= 4:4.8~) but it is not going to be installed
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).

运行sudo apt --fix-broken install修复了我的所有问题，安装了数据包跟踪器。