I am trying to build a program using the Processing library in eclipse. The process should be relatively straightforward but I cannot compile even an empty processing program. I
I had the exact same problem on my Mac with eclipse projects. But processing app was compiling fine by itself. So I looked up in processing app contents and found the jdk it uses (located in Processing/Contents/Plugins/ ) So I used it as my jdk with my project and it worked!
(I also installed the required libs (opengl ones) specified in core.jar contents (opened with Keka))