[racket] help on error: module-path-index-resolve: "self" index has no resolution?

> DrRacket.  I do not see the problem under the console with regular
> racket.
>
> What else can I do to help trace this error?

Ah, more information: I can see the error if the Dynamic Properties of
the module language are set as follows:

    * Debugging
    * Populate compiled/ directories (for faster loading)

If I turn off the "populate" option, the bug does not manifest.