Última actualización
Problema Similar ha sido reportado aquí.
El discurso de anuncio: Construir/CI fallas con ros-pruebas repositorio habilitado?
Update2
En realidad, la instalación de ROS Melódico error al final en mi caso:
Errors were encountered while processing:
/tmp/apt-dpkg-install-lRVV2P/0767-python-catkin-pkg-modules_0.4.22-1_all.deb
/tmp/apt-dpkg-install-lRVV2P/0794-python-rospkg-modules_1.2.8-1_all.deb
/tmp/apt-dpkg-install-lRVV2P/0796-python-rosdistro-modules_0.8.2-1_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
Más registros:
Selecting previously unselected package python-catkin-pkg-modules.
Preparing to unpack .../0767-python-catkin-pkg-modules_0.4.22-1_all.deb ...
Unpacking python-catkin-pkg-modules (0.4.22-1) ...
dpkg: error processing archive /tmp/apt-dpkg-install-lRVV2P/0767-python-catkin-pkg-modules_0.4.22-1_all.deb (--unpack):
trying to overwrite '/usr/lib/python2.7/dist-packages/catkin_pkg/__init__.py', which is also in package python-catkin-pkg 0.3.9-1
Selecting previously unselected package python-rospkg-modules.
Preparing to unpack .../0794-python-rospkg-modules_1.2.8-1_all.deb ...
Unpacking python-rospkg-modules (1.2.8-1) ...
dpkg: error processing archive /tmp/apt-dpkg-install-lRVV2P/0794-python-rospkg-modules_1.2.8-1_all.deb (--unpack):
trying to overwrite '/usr/lib/python2.7/dist-packages/rospkg/__init__.py', which is also in package python-rospkg 1.1.4-1
Selecting previously unselected package python-rosdistro-modules.
Preparing to unpack .../0796-python-rosdistro-modules_0.8.2-1_all.deb ...
Unpacking python-rosdistro-modules (0.8.2-1) ...
dpkg: error processing archive /tmp/apt-dpkg-install-lRVV2P/0796-python-rosdistro-modules_0.8.2-1_all.deb (--unpack):
trying to overwrite '/usr/lib/python2.7/dist-packages/rosdistro/__init__.py', which is also in package python-rosdistro 0.6.6-1
Actualización
Cuando defectuosos:
The following packages have unmet dependencies:
python-rosinstall-generator : Depends: python-catkin-pkg (>= 0.1.28) but it is not going to be installed
Depends: python-pkg-resources but it is not going to be installed
Depends: python-rosdistro (>= 0.7.3) but it is not going to be installed
Depends: python-rospkg but it is not going to be installed
Depends: python-yaml but it is not going to be installed
Depends: python2 (< 2.8) but it is not installable
Depends: python2 (>= 2.7) but it is not installable
Depends: python2:any (>= 2.6.6-7~) but it is not installable
E: Unable to correct problems, you have held broken packages.
apt-cache policy python-rosinstall-generator
python-rosinstall-generator:
Installed: (none)
Candidate: 0.1.20-1
Version table:
0.1.20-1 500
500 http://packages.ros.org/ros/ubuntu bionic/main amd64 Packages
500 http://packages.ros.org/ros/ubuntu bionic/main i386 Packages
0.1.13-3 500
500 http://archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
500 http://archive.ubuntu.com/ubuntu bionic/universe i386 Packages
apt-cache policy python3-rosinstall-generator
python3-rosinstall-generator:
Installed: (none)
Candidate: 0.1.20-1
Version table:
0.1.20-1 500
500 http://packages.ros.org/ros/ubuntu bionic/main amd64 Packages
500 http://packages.ros.org/ros/ubuntu bionic/main i386 Packages
0.1.13-3 500
500 http://archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
500 http://archive.ubuntu.com/ubuntu bionic/universe i386 Packages
Tengo un poco de problema para instalar el siguiente paquete python-rosinstall-generator en Ubuntu 18.04 con apt:
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
python-rosinstall-generator : Depends: python2 (< 2.8) but it is not installable
Depends: python2 (>= 2.7) but it is not installable
Depends: python2:any (>= 2.6.6-7~) but it is not installable
E: Unable to correct problems, you have held broken packages.
Desde que estoy usando Docker, tengo una vieja imagen donde python-rosinstall-generator ha sido correctamente instalado con apt install python-rosinstall-generator:
apt-cache depends python-rosinstall-generator
python-rosinstall-generator
Depends: python
Depends: python
Depends: python-catkin-pkg
Depends: python-pkg-resources
Depends: python-rosdistro
Depends: python-rospkg
Depends: python-yaml
Depends: <python:any>
python:i386
python
Depends: <python-argparse>
libpython2.7-stdlib
Conflicts: python3-rosinstall-generator
Después de hacer apt update en la ventana acoplable, se da ahora:
apt-cache depends python-rosinstall-generator
python-rosinstall-generator
Depends: python-catkin-pkg
Depends: python-pkg-resources
Depends: python-rosdistro
Depends: python-rospkg
Depends: python-yaml
Depends: <python2>
Depends: <python2>
Depends: <python2:any>
Depends: <python-argparse>
libpython2.7-stdlib
Conflicts: python3-rosinstall-generator
Y python2 paquete no instalado:
apt install python2
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package python2 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 'python2' has no installation candidate
Se parece a una reciente actualización ha roto algo, y ha introducido un python2 de dependencia de los paquetes.
dockerfile
FROM ubuntu:18.04
ENV DEBIAN_FRONTEND=noninteractive
RUN apt-get update && apt-get install --yes \
build-essential \
software-properties-common \
pkg-config \
cmake \
g++
RUN add-apt-repository "deb http://archive.ubuntu.com/ubuntu $(lsb_release -sc) main universe restricted multiverse"
RUN echo "deb http://packages.ros.org/ros/ubuntu $(lsb_release -sc) main" > /etc/apt/sources.list.d/ros-latest.list
RUN apt-key adv --keyserver 'hkp://keyserver.ubuntu.com:80' --recv-key C1CF6E31E6BADE8868B172B4F42ED6FBAB17C654
RUN apt-get update && apt-get install --yes python-rosinstall-generator
