ERROR: Could not determine java version from '15.0.2'

Question

Hey so I was trying to run the command ./gradlew setupDecompWorkspace on the windows powershell and it gave me an error as shown in the image. I also checked to see what version of gradle I was using and it said gradle-2.7-bin.zip inside the gradle-wrapper.properties and I tried upgrading the version via powershell using a command but the term gradle is not recognized. Please help me solve this issue since i need to do this for forge api.

Answer 1

Gradle 2.7 is an ancient version of Gradle from 2015. Java 15.x did not exist at that time. This version of Gradle does not know about it.

I think you might have more success when you try to run this build with Java 8.