Ros indigo Re-installation problem

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Hi everyone,

I installed ROS indigo first and then I tried to install ROS jade as well. I could install both ROS and switch between them successfully, However installation of jade totally replaced gazebo2.2 by gazebo5. Consequently I could not do any simulation in indigo. I decided to remove both ROS and Gazebo and reinstall the indigo, but I receive the below error when I try “sudo apt-get install ros-indigo-desktop-full”

Reading package lists... Done Building dependency tree        Reading state information... Done 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:  ros-indigo-desktop-full : Depends: ros-indigo-simulators but it is not going to be installed E: Unable to correct problems, you have held broken packages.