Due to the end of incubation, our Git URL-s has just changed (the "incubator-" was removed from them). Thus, you need to clone the repositories again, at least if you were cloning them from Apache directly (I'm not sure if Github handles the redirection on Git level). Here are the new URL-s:
https://freemarker.apache.org/sourcecode.html Also, the offical mailing list addresses has been changed to not include ".incubator". The old addresses still work though (I'm not sure if forever). Anyway, the fresh addresses are here: https://freemarker.apache.org/mailing-lists.html -- Thanks, Daniel Dekany