Yeah, Gradle wouldn't let me do gradlew SetupDecompWorkspace eclipse. Said I was doing it trying to run a setup and IDE command at once (on Windows 8 ). Also, every first time I try to set up fails and tells me to go to the nonexistent Compiler Error output (or where is it?), while I have to run SetupDecompWorkspace twice to succeed.
No matter what combination of SetupDecompWorkspace and eclipse I do, even if I do --refresh-dependencies in any form, I end up getting the missing library unresolved-dependencies problem when I import on eclipse. It doesn't even matter what version of Forge I'm using, all the solutions on these forums failed. All of them. Oh, and I installed Java SDK 8 instead of 7 and I have a 64-bit computer and all the prerequisite programs are 64-bit, make of that as you will...