sbt error: NoClassDefFoundError: org/fusesource/jansi/AnsiOutputStream

As a note to self, if you see this sbt error message with sbt 1.4.8, it’s a known issue:

java.lang.NoClassDefFoundError: org/fusesource/jansi/AnsiOutputStream

The short solution to the problem is to upgrade to sbt 1.4.9 or newer. The problem and solution are discussed in this Github sbt issue.

“Treat every moment as your last.
It is not preparation for something else.”
 
~ Shunryu Suzuki