Qt Creator autocomplete not updating for new UI widgets until (re)compile

kylenoteboom · wrote on 17 Dec 2016, 22:15

Qt Creator 4.2.0 Based on Qt 5.7.1 (GCC 6.2.1 20160830, 64 bit)
Running on Arch Linux.

Having made a new "Qt Widgets Application", with the default settings, I added some widgets to the 'mainwindow.ui' file.
I saved it, then added a slot for a button. In the function for said button I tried to get the value of some line edit, however, could not find it in the autocomplete in

ui->

Nor in

this->ui->

Compiling and running my application once made them available in autocomplete though.

Is this the ~~expected~~ intended behaviour for autocomplete with regards to new UI widgets?

SGaist · 18 Dec 2016, 12:22

Hi and welcome to devnet,

That's not intended nor expected.

Does it also happen if you quit and re-open Qt Creator with your project ?

kylenoteboom · S SGaist 17 Dec 2016, 22:25

@SGaist It also happens when I restart Qt Creator. I've also tried a reboot, and it did not help.

SGaist · wrote on 18 Dec 2016, 21:12

One thing you can try in between is to disable the clang code model. Go to "About plugins" and then you should find a check box about that. You'll return to the old code model.

Before doing that, start Qt Creator on the command line to see if there's any error message printed that might be related to that.

adke · wrote on 2 Sept 2019, 15:12

This is actually correct and behaves very strangely, sometimes it works and sometimes not.
Problem is big if one is beginner like me.
I don't know why the problem still persists after 3 years.
Currently i am using Qt Creator 4.9.2 with Qt 5.12.4 with Mingw.

jorialand · wrote on 26 Apr 2020, 10:10

I was having the same problem, but for me has worked to disable the Clang code model and restarting Qt.