Generated ui_mainwindow.h file is generated with errors

[Everdream]

Hello everyone,

It seems after a downgrade of my Qt from 5.12 to 5.9.5.
I got these kind of errors:

I can't update my Qt. Is there anything to correct this bug. Don't wanna delete the lines in cause everytime, I change a thing on the ui.

Thanks a lot,

Eve

[jsulm]

@Everdream Do a complete rebuild: delete build folder, run qmake and build

[Everdream]

It's effectively worked.

Thanks!

[jsulm]

@Everdream Just to explain: ui_* files are auto-generated during build. So, if you built with a newer Qt version you already have these ui* files which rely on newer Qt version. If you built again (not a complete rebuild) these ui_* files will not be generated as they are already there (unless you changed something in *.ui files in designer).

Please mark the topic as solved.