Did you add images to the build path?
libgdx.png is put in place when the setup-ui makes your projects. As for the other images, try refreshing eclipse (specifically the android project).
Possibly the PNG files are formatted in a way that LibGDX cannot handle. At least, I remember having this problem once with a set of public domain PNG's I used. Opening them in paint.net
and saving them as PNG again solved the problem for me.
Thanks, but none of these solutions work. The android project didn't compile, and Java generated some errors, so maybe that has something to do with it? I don't care for the HTML project.
Description Resource Path Location Type
The project was not built since its build path is incomplete. Cannot find the class file for java.lang.Object. Fix the build path then try building this project drop-android Unknown Java Problem
The project was not built since its build path is incomplete. Cannot find the class file for com.google.gwt.core.client.EntryPoint. Fix the build path then try building this project drop-html Unknown Java Problem
The type java.lang.Object cannot be resolved. It is indirectly referenced from required .class files MainActivity.java /drop-android/src/com/badlogic/drop line 1 Java Problem
The type com.google.gwt.core.client.EntryPoint cannot be resolved. It is indirectly referenced from required .class files GwtLauncher.java /drop-html/src/com/badlogic/drop/client line 8 Java Problem
EDIT: Nvm. I didn't refresh the assets folder, because since I closed Eclipse the day before and then restarted it today, I thought it would refresh automatically.