--- a/progs/fun/fun_parser.sc	Thu Jan 20 08:58:38 2022 +0000
+++ b/progs/fun/fun_parser.sc	Mon Jan 24 00:00:33 2022 +0000
@@ -158,7 +158,11 @@
 
 // Reading tokens and Writing parse trees
 
-import ammonite.ops._
+// pre-2.5.0 ammonite 
+// import ammonite.ops._
+
+// post 2.5.0 ammonite
+import $ivy.`com.lihaoyi::os-lib:0.8.0` 
 
 def parse_tks(tks: List[Token]) : List[Decl] = 
   Prog.parse_single(tks)