DevilRiseAgain

First i'm installed Idea. Setup and config forge in several folder, " .\gradlew setupDecompWorkspace" & " .\gradlew ". Next step was extracting it into folder with my project. And i cant use "Block" class in the Idea. Next i download eclipse, Setup workspace and moved folder with forge in workspace folder. Runed "gradlew SetupDecompWorkspace" "gradlew eclipce" and now have that you can see in screensshots

I want just to decompile, edit, and compile it back some mods, I'm tried: Use jdk 6-8 Recompill SetupDecompWorkspace eclipse commands Use eclipse and Idea