scala “error: io error while decoding” “with utf-8”

Question

this thing keeps coming up I checked that all my source files are utf8 encoded, and Im using \'-encoding UTF8\' flag with both scalac and scala command line tools
any ideas?

Answer 1

I encountered this problem running sbt "test" with Main.scala, for the indicated reason that it wasn't saved in UTF-8. I fixed it by changing Eclipse Main.scala "File / Properties / Text file encoding / Other" to "UTF-8" and saving.