make: *** No rule to make target 'mainwindow.ui', needed by 'ui_mainwindow.h'

vp07

I made a simple QT gui application through QTCreator. It is running well on my Linux 20.04

Now, I want to build this application in yocto to make it run on imx8mp board. I have created a hello-gui_1.0.0.bb file.

SUMMARY = "QT Demo GUI Application"
LICENSE = "CLOSED"

SRC_URI = "file://HelloGUI.pro \
           file://main.cpp \
           file://mainwindow.cpp"

DEPENDS += " \
        qtbase \
        qtdeclarative \  
        packagegroup-qt6-modules \
        wayland \
"

RDEPENDS_${PN} += "qtwayland"

S = "${WORKDIR}"
    
inherit qt6-qmake

I created directory and file structure as below

hello-gui
|--hello-gui_1.0.0.bb
|--files
   |--HelloGUI.pro
   |--main.cpp
   |--mainwindow.cpp
   |--mainwindow.h
   |--HelloGUI.pro.user
   |--mainwindow.ui

I am continuously getting below an error shown below

| make: *** No rule to make target 'mainwindow.ui', needed by 'ui_mainwindow.h'.  Stop.
| ERROR: oe_runmake failed
| WARNING: exit code 1 from a shell command.

Is there any dependency that I missed? I have created this application on QT5 and yocto has QT6. Is that fine?

sierdzio

Looks like either UIC is not getting run or some include paths are wrong. I don't know this build system, can't help much with that.

I have created this application on QT5 and yocto has QT6. Is that fine?

Not necessarily. Try Qt 6 on your desktop. Usually they are mostly source-compatible but sometimes some small modifications are necessary.

But Qt5-6 differences would not produce the error from make you've quoted above.