This page is meant to explain how to solve common issues when installing or using KAMI. If you experience an issue and it's not listed here, please open a new issue and a contributor will help you further.
If you encounter this error when building, you most likely don't have the Java Development Kit (JDK) installed. Head over to here to download the oracle JDK. Install it and try again.
What .jar are you using in your mods folder? Make sure to use the one that ends with -release (VERSION-release.jar)
Don't use that, try building and running forge normally
Make sure your workspace is clean and run ./gradlew setupDecompWorkspace ./gradlew build mkdir rmOld copy
Please make sure you're on the latest version of forge before proceeding!
Crashes in game but it worked fine / errors link to files you haven't changed
Delete your .gradle or gradle cache or whatever it's called on windows