Compile Error initializing "sbt.internal.io.Milli"

Since upgrading to 3, or since switching to artifactory, I’ve been getting errors running my simulation outside on virtual machines. Works fine in intellij and on mac os cli, but not ubuntu…

Suppressed: java.lang.NoClassDefFoundError: Could not initialize class sbt.internal.io.Milli$
at sbt.io.IO$.getModifiedTimeOrZero(IO.scala:1214)
at sbt.internal.inc.caching.ClasspathCache$.fromCacheOrHash$1(ClasspathCache.scala:33)
at sbt.internal.inc.caching.ClasspathCache$.$anonfun$hashClasspath$1(ClasspathCache.scala:42)

Any suggestions how to resolve?