We upgraded to 1.7.0 and I’m seeing those errors while building with pants:

[error] ## Exception when compiling
[error] assertion failed: Modified names for <class_name> is empty
[error] scala.Predef$.assert(Predef.scala:179)
[error] __shaded_by_pants__.sbt.internal.inc.NamesChange.<init>(Changes.scala:31)
[error] __shaded_by_pants__.sbt.internal.inc.IncrementalNameHashing.sameAPI(IncrementalNameHashing.scala:35)
[error] __shaded_by_pants__.sbt.internal.inc.IncrementalCommon.sameClass(IncrementalCommon.scala:158)
[error] __shaded_by_pants__.sbt.internal.inc.IncrementalCommon$$anonfun$7.apply(IncrementalCommon.scala:140)
[error] __shaded_by_pants__.sbt.internal.inc.IncrementalCommon$$anonfun$7.apply(IncrementalCommon.scala:139)