I guess [1] is a similar issue, it's caused by the jansi.dll bundled with jline.jar. *
* *I have a theory, but I'm not in front of my win64 install to validate it. There are two jansi.dll bundled in jline.jar, one for 32 bits and one for 64 bits. The one being picked up is chosen based on the value of sun.arch.data.model system property (32 or 64). Once unpacked the dll does not get refreshed based on timestamp. So my guess is that you first ran the 32 bits version which unpacked the 32 bits dll. When starting the 64 bits JVM, jansi.dll is incompatible. So try del %TEMP%\jansi.dll and then start your scala on 64 bits to see if that works. – huynhjl<http://stackoverflow.com/users/257449/huynhjl> Jun 16 at 1:44* [1] http://stackoverflow.com/questions/6361067/failed-to-created-jlinereader-scala-repl -- Shawn
