With bug 373382 and bug 375524 an import crash happens when enums are used before defined. Looking at the importer source this crash probably happens also with ada imports.
Git commit e0ab3633816c6b0aed6c11a718ba5db4b35eb9b7 by Ralf Habacker. Committed on 18/01/2017 at 22:07. Pushed by habacker into branch 'Applications/16.12'. Fix 'Ada import probably crashes if enums are used before defined'. FIXED-IN:2.21.2 (KDE Applications 16.12.2) M +4 -1 umbrello/codeimport/adaimport.cpp https://commits.kde.org/umbrello/e0ab3633816c6b0aed6c11a718ba5db4b35eb9b7