bump default resolver to 12.0

simonmichael · simonmichael · commit a7b53d8a19a5 · 2018-09-22T07:23:30.000-10:00
diff --git a/stack.yaml b/stack.yaml
@@ -1,4 +1,4 @@
-resolver: nightly-2018-04-25
+resolver: lts-12.0
 
 packages:
 - '.'
