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+# Ros installation for Ubuntu 13.10 Saucy Salamander
+## Preparation
+Remove any previous python-ros packages as:
+    sudo aptitude remove python-rosdep python-rosdistro python-wstool python-rosinstall-generator python-rosinstall python-rospkg
+Add the repository, with the name of your disto name:
+    sudo sh -c 'echo "deb http://packages.ros.org/ros/ubuntu saucy main" > /etc/apt/sources.list.d/ros-latest.list'
+Reinstall python-ros install packages (as explained in the ros wiki):
+    sudo apt-get install python-rosdep python-rosinstall-generator python-wstool python-rosinstall build-essential
+## Installation
+Follow http://wiki.ros.org/hydro/Installation/Source instructions:
+    rosdep update
+In the future workspace:
+    rosinstall_generator desktop_full --rosdistro hydro --deps --wet-only --tar > hydro-desktop-full-wet.rosinstall
+    rosdep install --from-paths src --ignore-src --rosdistro hydro -y -r
+(added -r option to ignore gazebo 2 error)
+    sudo ./src/catkin/bin/catkin_make_isolated --install --install_space /... (wherever you want exept /opt/ros/hydro)
+This is the main idea, you will probably need to solve different issues, please see a list bellow.
+## Issues
+### encoding error with python
+If python returns an encoding error with builder.py, try https://github.com/ros/catkin/commit/16731b137514be478942277be254dc6312e1ef88
+### gazebo missing
+I'm now having an error with gazebo -> trying to install from http://gazebosim.org/ -> it worked!
+### error with Qt while compiling rviz
+Rviz returns a segfault:
+We tried:
+* set qt4 by default (instead of qt5) -> no significant change
+* remove libshiboken-dev (seen somewhere, thx google)
+romoving libshiboken-dev worked for us, maybe you can keep Qt5 by default...
+### error with rqt_graph
+I had a `NameError: global name 'dot_parser' is not defined` error.
+solved it installing python-pip and following http://stackoverflow.com/questions/15951748/pydot-and-graphviz-error-couldnt-import-dot-parser-loading-of-dot-files-will
+    sudo pip uninstall pyparsing
+    sudo pip install -Iv https://pypi.python.org/packages/source/p/pyparsing/pyparsing-1.5.7.tar.gz#md5=9be0fcdcc595199c646ab317c1d9a709
+    sudo pip install pydot