I was trying to install gazebo2 to ubuntu trusty. I ran sudo apt-get update I got this error below W: Failed to fetch http://packages.osrfoundation.org/gaz... Unable to find expected entry 'main/binary-armhf/Packages' in Release file (Wrong sources.list entry or malformed file) Please help me on how to fix this error

I ignored the error and went ahead to install gazebo2 by running sudo apt-get install gazebo2 I got another error below Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package gazebo2

Please assist me to fix this error so that I can install gazebo2 in beagleboneblack, I installed Indigo base which has no default gazebo. Should I uninstall Indigo Base and install desktop-full which has default gazebo2. What command will I use to do that?

I appreciate every help I can get