ID:39011 Demotion type <name> specified for Compiler Database Interface (quartus_cdb) --back_annotate option is illegal. Refer to --help for legal demotion types.

CAUSE: You attempted to run quartus_cdb with the specified demotion type for the --back_annotate option. However, the demotion type is illegal. You must specify a legal demotion type for the --back_annotate option.

ACTION: Specify a legal demotion type for the quartus_cdb --back_annotate option. Use the quartus_cdb --help=back_annotate option for a list of legal demotion types.