I am trying to get the Repast Simphony to work with the instructions from here https://repast.github.io/download.html#update-site-install which clearly states that it would work only with Groovy Compiler version 2.4.x
However, in October 2020, support for the Groovy compiler has been officially dropped: https://github.com/groovy/groovy-eclipse/commit/454c669ab9649be2a87f449f7b9ea2eb29f7999e
Is there a way to get Repast Simphony to work with Eclipse anymore?
Thanks for finding this. You should be fine if you point to the update site from the previous version (v.3.9.0) of the Groovy Eclipse plugin: https://dist.springsource.org/release/GRECLIPSE/3.9.0/e4.16 We'll adjust the Repast Simphony Eclipse Update Site install instructions to reflect this.
(Adjusted the instructions here: https://repast.github.io/download.html#update-site-install)