This is weird. Trying out Helix examples https://github.com/aiba/helix-react-native-nav back on an older MBPro I get this (indirectly from make shadow: $ clj -m shadow.cljs.devtools.cli watch dev Error building classpath. Could not find artifact com.datomic:dev-local:jar:0.9.203 in central (https://repo1.maven.org/maven2/) I an guessing shadow does not use Datomic. But…who is looking for that dev-local jar? Wish I knew mvn. (I’ll start researching that,) Now once upon a recent time I had installed some Datomic tools, so I am guessing one of them is trying to reach that dev-local.jar, but I do not recall what that could be or how to track it down and get rid of it. Not doing Datomic these days.

@hiskennyness not a clue. shadow-cljs definitely doesn't use anything from datomic. maybe you put something in ~/.clojure/deps.edn or so?

Thx, @thheller, that was it. I never use that file so it was out of mind. ISTR the Datomic install directions suggesting that and like a dummy I went ahead and created a global dependency on a test jar. :face_palm: