DDD 3.3.12 (i386-apple-darwin16.0.0) gets Xt error

I am running on a Mac OS X Sierra system, and tried to open DDD to debug a Fortran90 program.

I just rebooted my computer after installing DDD and tried to run it for the first time and got:

Error: Unresolved inheritance operation

Xt error (Unresolved inheritance operation).

Oops!  You have found a bug in DDD.

If you can reproduce this bug, please send a bug report
to <[email protected]>, giving a subject like

    DDD 3.3.12 (i386-apple-darwin16.0.0) gets Xt error

To enable us to fix the bug, you should include the following information:
* What you were doing to get this message.  Report all the facts.
* The contents of the `~/.ddd/log' file as generated by this session.
Please read also the section "Reporting Bugs" in the DDD manual.

We thank you for your support.

ddd: Cannot save options



Lynsey Schroeder

[email protected] <mailto:[email protected]>
c: (763) 257-7967