fatal error: QColor: No such file or directory

[SPlatten]

@JonB , I used grep to find the same include in other projects that do compile without error:

grep -Rnw ./ -e "#include <QColor>"

I then looked at the .pro file. I cannot see anything that I have done differently.

[kkoehne]

Can you show the full command line for the compiler call that fails?

[SPlatten]

This post is deleted!

[JonB]

@SPlatten said in fatal error: QColor: No such file or directory:

-I/usr/include/qt5 -I/usr/include/qt5/QtNetwork -I/usr/include/qt5/QtCore

Are these the directories where Qt's include files including for QColor are located?
How does this command line compare against one issued for a file which does find <QColor>?

[hskoglund]

Also in addition to @JonB's questions:
if you try including another file in the same directory, say:
#include <QIcon>
do you get the same error for that file?
Also what happens if you try compiling a .cpp file instead of a .c file?

[J.Hilk]

@SPlatten are you sure, that the subproject has this header marked as HEADER in the pro file ?

[SPlatten]

This post is deleted!

[JonB]

@hskoglund said in fatal error: QColor: No such file or directory:

Also in addition to @JonB's questions:
if you try including another file in the same directory, say:
#include <QIcon>

I asked the OP to do just this earlier on...!

[SPlatten]

@JonB , why would one project find it and another doesn't?

[SPlatten]

@JonB , QObject is included and that isn't a problem

[Edit] More specifics: The project build structure:

Top level .pro A
  sub-projects B
   more-sub-projects C

If I go to level C and build the project compiles without error, however at level B it does have the error, there is a pro file at each level.

[JonB]

@SPlatten
And did you compare the command-lines issued at working vs non-working levels for a clue?

[jsulm]

@SPlatten said in fatal error: QColor: No such file or directory:

why would one project find it and another doesn't?

Because those are two different projects with own pro files if I understood you correctly.
If you use subdirs project type then add "QT += gui" in the subprojects pro files where QColor is included (directly or via other header files).

[JonB]

@jsulm I suspect you have hit the nail on the head....!

[SPlatten]

@jsulm , I've moved on now, by ditching the header and reference to QColor.