Project ERROR: Could not find feature static.

Sajeevan K

Hi Jsulm,

Thank You for the reply. As You told there are two Qt installations in my system.

One from source and with qmake file /home/sajeevank/Downloads/qt-everywhere-opensource-src-5.8.0/qtbase/bin/qmake
This is for cross compilation for an Embedded Target board.
The other installed from qt-sdk package with qmake /usr/lib/x86_64-linux-gnu/qt5/bin/qmake

Now by using absolute path for the first qmake, I could compile some of the example applications successfully and deploy it in my embedded target board.
Example: qt-everywhere-opensource-src-5.8.0/qtbase/examples/widgets/widgets/calculator

But when I am trying to do the same thing for qt3d examples it is showing the "Unknown Module(s) in Qt" error as shown below.
sajeevank@sajeevank-Vostro-3559:~/Downloads/qt-everywhere-opensource-src-5.8.0/qt3d/examples/qt3d/basicshapes-cpp$ /home/sajeevank/Downloads/qt-everywhere-opensource-src-5.8.0/qtbase/bin/qmake basicshapes-cpp.pro
Project ERROR: Unknown module(s) in QT: 3dextras 3dcore 3drender 3dinput

I tried both the ways You suggested and the result is as follows.
By using Qt Creator
Case1 - I selected Desktop in projects, the compiler /usr/bin/g++ and qmake is /usr/lib/x86_64-linux-gnu/qt5/bin/qmake

Result: Compile Error. Showing the message:
../analogclock/analogclock.cpp:51:21: fatal error: QtWidgets: No such file or directory
compilation terminated.

To solve this issue, I used #include <QWidget> instead of #include <QtWidgets>

and in .pro file
QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

added instead of
QT += widgets

Now it is compiled successfully. But running not working. (running symbol not getting in Green color)

Case 2: I selected Qt 5.8.0(qt-everywhere-opensource-src-5.8.0) in projects, qmake is /home/sajeevank/Downloads/qt-everywhere-opensource-src-5.8.0/qtbase/bin/qmake, in this case, I don't know, in which location the compiler is. So I selected the /usr/bin/g++ itself.

It is showing the following error.
Project ERROR: /home/sajeevank/Downloads/qt-everywhere-opensource-src-5.8.0/qtbase/examples/widgets/widgets/analogclock/analogclock.pro installs target to unexpected location.

By using the absolute path of qmake
Result
/home/sajeevank/Downloads/qt-everywhere-opensource-src-5.8.0/qtbase/bin/qmake calculator.pro
(successfully completed)
/home/sajeevank/Downloads/qt-everywhere-opensource-src-5.8.0/qtbase/bin/qmake
(successfully completed)
make
(successfully completed)
./calculator

Please help me in solving this problem.
Thanks in advance for the help.

Thanks & Regards,
Sajeevan.K

Sajeevan K

Hi Jsulm,

By mistake, I submitted before completing the mail. Mail continues..
By using the absolute path of qmake
Result
/home/sajeevank/Downloads/qt-everywhere-opensource-src-5.8.0/qtbase/bin/qmake calculator.pro
(successfully completed)
/home/sajeevank/Downloads/qt-everywhere-opensource-src-5.8.0/qtbase/bin/qmake
(successfully completed)
make
(successfully completed)
./calculator
(fails,showing exec error)
But this was working in embedded target board.

But I tried another application example as my requirement is a 3d drawing - qt-everywhere-opensource-src-5.8.0/qt3d/examples/qt3d/basicshapes-cpp.
But it is showing the "Unknown module(s) in QT" error.

Please provide help in coming out of this issues.

Thanks & Regards,
Sajeevan.K

SGaist

Hi,

Since you have built Qt yourself, what parameters did you pass to it ?

Sajeevan K

Hi Gaist,

Thank You for the reply.

My build configuration is as follows

./configure -platform linux-g++ -xplatform linux-arm-linaro-g++ -release -device linux-beagleboard-g++
-sysroot /opt/sysroot-eglibc-linaro-2017.01-arm-linux-gnueabihf/
-prefix ~/QtForBBB
-device-option CROSS_COMPILE=/opt/gcc-linaro-4.9.4-2017.01-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-
-qt-xcb
-nomake tests -nomake examples -no-opengl

And qt-everywhere-opensource-src-5.8.0/qtbase/mkspecs/linux-arm-linaro-g++/qmake.conf is as follows

include(../../common/linux.conf)
include(../../common/gcc-base-unix.conf)
include(../../common/g++-unix.conf)

QMAKE_CC = /opt/gcc-linaro-4.9.4-2017.01-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-gcc

QMAKE_CXX = /opt/gcc-linaro-4.9.4-2017.01-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-g++

QMAKE_LINK = /opt/gcc-linaro-4.9.4-2017.01-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-g++

QMAKE_LINK_SHLIB = /opt/gcc-linaro-4.9.4-2017.01-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-g++

QMAKE_AR = /opt/gcc-linaro-4.9.4-2017.01-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-ar

QMAKE_OBJCOPY = /opt/gcc-linaro-4.9.4-2017.01-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-objcopy

QMAKE_STRIP = /opt/gcc-linaro-4.9.4-2017.01-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-strip

load(qt_config)

I tried to configure by removing -no opengl option. But then configuration is failed. And error message is as shown below.

Note: No wayland-egl support detected. Cross-toolkit compatibility disabled.

ERROR: The OpenGL functionality tests failed!
You might need to modify the include and library search paths by editing QMAKE_INCDIR_OPENGL[_ES2],
QMAKE_LIBDIR_OPENGL[_ES2] and QMAKE_LIBS_OPENGL[_ES2] in the mkspec for your platform.

Check config.log for details.

Also I have an opengl application which is finely working in QtCreator, when I am selecting "desktop" in Projects window.
The same application when I am building with "BBB"(for cross compiling Beaglebone Black) in Projects window, it is showing the following error.

Project ERROR: Unknown module(s) in QT: opengl
10:05:06: The process "/opt/sysroot-eglibc-linaro-2017.01-arm-linux-gnueabihf/home/sajeevank/QtForBBB/bin/qmake" exited with code 3.

In short, the problem I am facing now is Opengl application which is finely working with desktop is not working in Beaglebone Black.

Please suggest the work around.

Thank You in advance for the help.

Thanks & Regards,
Sajeevan.K

SGaist

Is it me or are you trying to run a Qt3D application with a Qt version where you are explicitly disabling OpenGL ?

Sajeevan K

Hi Gaist,

Earlier I did that as per some online guides. At that time I did not require OpenGL. But now when I remove it, it is showing the following error messages

Note: No wayland-egl support detected. Cross-toolkit compatibility disabled.

ERROR: The OpenGL functionality tests failed!
You might need to modify the include and library search paths by editing QMAKE_INCDIR_OPENGL[_ES2],
QMAKE_LIBDIR_OPENGL[_ES2] and QMAKE_LIBS_OPENGL[_ES2] in the mkspec for your platform.

Check config.log for details.

Thanks in advance for the help.

Thanks & Regards,
Sajeevan.K

SGaist

You should use your BBB sysroot as it should contain everything needed for OpenGL.

Sajeevan K

Hi Gaist,

Thank You for the reply. I am using the sysroot - "sysroot-eglibc-linaro-2017.01-arm-linux-gnueabihf", which I got from https://releases.linaro.org/components/toolchain/binaries/4.9-2017.01/arm-linux-gnueabihf/. I am not sure whether it is a sysroot with installed OpenGL ES packages. I explored in this sysroot directory. I couldn't find an opengl or gl directory or file. Does this sysroot really contains OpenGL ES packages?

Also how should I modify ~/qt-everywhere-opensource-src-5.8.0/qtbase/mkspecs/linux-arm-linaro-g++/qmake.conf
to include QMAKE_INCDIR_OPENGL[_ES2],
QMAKE_LIBDIR_OPENGL[_ES2] and QMAKE_LIBS_OPENGL[_ES2]. Is it as shown below?

QMAKE_INCDIR_OPENGL[_ES2] = /opt/gcc-linaro-4.9.4-2017.01-x86_64_arm-linux-gnueabihf/include
QMAKE_LIBDIR_OPENGL[_ES2] = /opt/gcc-linaro-4.9.4-2017.01-x86_64_arm-linux-gnueabihf/lib
QMAKE_LIBS_OPENGL[_ES2] = /opt/gcc-linaro-4.9.4-2017.01-x86_64_arm-linux-gnueabihf/lib

When I do it as above I am getting the following error messages.

Note: No wayland-egl support detected. Cross-toolkit compatibility disabled.

ERROR: Feature 'opengl' was enabled, but the pre-condition 'features.opengl-desktop || features.opengl-dynamic || features.opengles2' failed.

ERROR: The OpenGL functionality tests failed!
You might need to modify the include and library search paths by editing QMAKE_INCDIR_OPENGL[_ES2],
QMAKE_LIBDIR_OPENGL[_ES2] and QMAKE_LIBS_OPENGL[_ES2] in the mkspec for your platform.

Check config.log for details.

Thanks in advance for the help,

Thanks & Regards,
Sajeevan.K

SGaist

Like I wrote before: use a sysroot made for the BBB. Linaro provides a generic sysroot. The device producer usually provide their own with everything needed to access their specialised hardware. That's not the role of Linaro.

Sajeevan K

Hi Gaist,

Thank You very much for the reply. I will move in that direction.

Thanks & Regards,
Sajeevan.K