Test_3.scala:2: error: macro cannot be expanded, because it was compiled by an incompatible macro engine vxxx (implemented in the incompatibleMacroEngine plugin)
  Macros.foo
  ^
Test_3.scala:3: error: macro cannot be expanded, because it was compiled by an incompatible macro engine vxxx (implemented in the incompatibleMacroEngine plugin)
  Macros.foo
  ^
two errors found