error: newSource1.scala:4: overriding type D in class B with bounds <: stuberrors.A;
 type D has incompatible type
      new B { type D = E }
                   ^
error: newSource1.scala:4: Symbol 'type stuberrors.A' is missing from the classpath.
This symbol is required by 'type stuberrors.B.D'.
Make sure that type A is in your classpath and check for conflicting dependencies with `-Ylog-classpath`.
A full rebuild may help if 'B.class' was compiled against an incompatible version of stuberrors.
      new B { type D = E }
      ^
error: newSource1.scala:4: Symbol 'type stuberrors.A' is missing from the classpath.
This symbol is required by 'class stuberrors.E'.
Make sure that type A is in your classpath and check for conflicting dependencies with `-Ylog-classpath`.
A full rebuild may help if 'E.class' was compiled against an incompatible version of stuberrors.
      new B { type D = E }
                       ^