[Qt-creator] QtCreator on F29

[Nikolai Kosjar]

On 6/25/19 9:36 PM, Richard Kimberly Heck wrote:
> On 6/25/19 3:11 PM, Richard Kimberly Heck wrote:
>>
>> Hi, André! Hope you are well.
>>
>> On 6/19/19 5:10 PM, André Pönitz wrote:
>>> On Fri, Jun 14, 2019 at 10:12:52PM -0400, Richard Kimberly Heck wrote:
>>>> Since upgrading to Fedora 29 (yes, I tend to be a bit behind), I've been
>>>> having problems using QtCreator as I always have to work on LyX.
>>>> Specifically, QtCreator fails to find a lot of included files, with the
>>>> result that there are gazillions of 'parse errors' displayed in the
>>>> editor. For example, our own generated config.h is not found, and
>>>> QtCreator complains that none of the Qt headers are found.
>>>>
>>>> Any idea what has changed or what I might do? I've tried deleting all
>>>> the *.creator files, etc.
>>> I guess there's more information on the actual versions needed.
>>>
>>> I tried current LyX + Qt Creator + Qt (all recent-ish git)
>>> with CMake and it built and run out-of-the-box.
>>
>> This is all on Fedora 29.
>>
>> About QtCreator says:
>>
>> Qt Creator 4.7.2
>>
>> Based on Qt 5.11.3 (GCC 8.2.1 20181215 (Red Hat 8.2.1-6), 64 bit)
>>
>> Qt itself is 5.11.3
>>
>> I've just cloned the LyX git repo into a fresh directory, and I have 
>> the same problem. The first and in a way biggest problem is that 
>> config.h is not being found. But nor are the Qt headers, still. I'm 
>> attaching a screenshot showing what I see.
>>
>> It is possible, of course, that it is a Fedora problem. The problem 
>> appeared when I upgraded to F29.
>>
> I've just downloaded Qt 4.9.1, and the problem with the Qt headers 
> persists. I also tried deleting (or moving) all of the QtCreator files 
> in ~/.config/. The weird thing is that compilation works fine. It's just 
> in the editor that the errors appear (which then causes all kinds of 
> other problems). For some reason, the Qt headers are just not being 
> found by QtCreator itself. (They are in /usr/include/qt5/.)
> 
> I have checked the "kit" and set the Qt Version to 
> /usr/lib64/qt5/bin/qmake-qt5. This reports Qt version 5.11.3, and the 
> "Details" section gives the expected info.
> 
> How does QtCreator try to find the Qt headers?

1) Regarding the missing config.h - as this is generated by the build 
system, you need to build. If you have, try re-opening e.g. GuiView.cpp

2) In projects mode, there is no warning icon in front of the kit name, 
correct? If there is one, what's the warning?

3) In your attached screenshot, there is a yellow warning icon in the 
editor toolbar, just before the symbol outline dropdown ("<Select 
Symbol>") - what does it warn about?

4) Open the problematic file and Menu: Tools > C++ > "Inspect C++ Code 
Model..." should provide you the list of include paths the code model 
gets (Top level tab: "Project Pats", bottom level tab: "Header Paths"). 
Maybe more essential include paths are missing?

5) Which cmake version are you using? I have cmake-3.14.5 and that seems 
to work fine once the build process generated config.h.

Nikolai