It mentioned `rkNode`, so it seems to be an internal error, a compiler bug.
However, I don't think the code is valid.
v =
case s:
of "A": 11
else: raiseError("invalid value")
Run
As `raiseError` doesn't return `int`, the compiler will think that you're
assigning nothing to `v` if `s` is not `"A"`.
Try to change it to
v =
case s:
of "A":
11
else:
raiseError("invalid value")
0
Run
