I tried to install ROS again after uninstalling and i'm getting these error

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The following packages have unmet dependencies: ros-kinetic-desktop-full : Depends: ros-kinetic-desktop but it is not going to be installed Depends: ros-kinetic-perception but it is not going to be installed Depends: ros-kinetic-simulators but it is not going to be installed E: Unable to correct problems, you have held broken packages.

How can i resolve this issue!