I have two projects that are instantiations of actual code written in libGDX. One is the desktop version of the game, the other is the android version of the game, and the last project folder is the actual code for the game mechanics. So I have three projects in eclipse. The actual code of the game, and then two other projects that create “versions” of the game (Android and Desktop versions).
For the desktop version, the game will not run. The screen will appear, and then go away quickly. When I go to properties and linked resources, I see the following error: “Invalid Location” 
For the android version of the game, when I go to properties look under linked resources, I see nothing. Shouldn’t the assets folder be linked there? 
Also, when I go and try to run the android version of the project, the program installs, but then the emulator says not responding. It could just be because, it’s taking a long time to get the game started on the emulator.
Have you added the library from the android tab in the properties menu?
The assets folder wont show in the linked resources, the only time i have ever seen items in linked resources is when i link a library project which is done on the android tab at the bottom see example:
This then shows:
Add your external JAR from the Java Build Path tab