fatal error: VX/vx.h: No such file or directory #include <VX/vx.h>

[SijinJohn]

/home/pi/OpenVX/OpenVX-sample-impl/cts/test_engine/test_utils.h:21:10: fatal error: VX/vx.h: No such file or directory
#include <VX/vx.h>
^~~~~~~~~
compilation terminated.

i am getting this error on Raspberry pi 3.

[balaji-ch]

refer this

#14

[SijinJohn]

@balaji-ch

i followed this

Use the Build.py script to build and install OpenVX 1.3
cd OpenVX-sample-impl/
python Build.py --os=Linux --venum --conf=Debug --conf_vision --enh_vision --conf_nn

Build and run the conformance:

export OPENVX_DIR=$(pwd)/install/Linux/x32/Debug
export VX_TEST_DATA_PATH=$(pwd)/cts/test_data/
mkdir build-cts
cd build-cts
cmake -DOPENVX_INCLUDES=$OPENVX_DIR/include -DOPENVX_LIBRARIES=$OPENVX_DIR/bin/libopenvx.so;$OPENVX_DIR/bin/libvxu.so;pthread;dl;m;rt -DOPENVX_CONFORMANCE_VISION=ON -DOPENVX_USE_ENHANCED_VISION=ON -DOPENVX_CONFORMANCE_NEURAL_NETWORKS=ON ../cts/
cmake --build .

[balaji-ch]

Looking at your post export OPENVX_DIR=$(pwd)/install/Linux/x32/Debug I guess, you are trying a 32bit build.
then the build command must be
python Build.py --os=Linux --venum --conf=Debug --conf_vision --enh_vision --conf_nn --arch=32

Read the Build.py comments and enable needed flags.
parser.add_option("--arch", dest="arch", help="Set the architecture (32 / 64 bit) [Default 64]", default='64')

[SijinJohn]

So do i need to do build command again from the beginning ??

I tried with your command :- python Build.py --os=Linux --venum --conf=Debug --conf_vision --enh_vision --conf_nn --arch=32
but same issue

[balaji-ch]

Delete everything and start afresh, following the build instructions carefully.
unless you specifically want a 32 bit build , you don't need to specify arch=32 .

And still you are stuck, post all the command sequence you have used starting form git clone --recursive.

[SijinJohn]

I followed this tutorial:-

https://www.raspberrypi.org/blog/openvx-api-for-raspberry-pi/

[balaji-ch]

That blog post is the same as in
Sample 2 - Build OpenVX 1.3 on Raspberry Pi
https://github.com/KhronosGroup/OpenVX-sample-impl

Not sure about your error. Start afresh and see .

[kiritigowda]

@SijinJohn, let us know if this issue is resolved for you. The missing header file errors are due to missing submodules. Use the recursive clone flag to fix this.

[SijinJohn]

@kiritigowda

not resolved
This step->
cmake -DOPENVX_INCLUDES=$OPENVX_DIR/include -DOPENVX_LIBRARIES=$OPENVX_DIR/bin/libopenvx.so;$OPENVX_DIR/bin/libvxu.so;pthread;dl;m;rt -DOPENVX_CONFORMANCE_VISION=ON -DOPENVX_USE_ENHANCED_VISION=ON -DOPENVX_CONFORMANCE_NEURAL_NETWORKS=ON ../cts/
gives error
CMake Error: The source directory "/home/pi/OpenVX/OpenVX-sample-impl/build-cts" does not appear to contain CMakeLists.txt.

CmakeLists.txt is in OpenVX-sample-impl not inside build-cts
I am not getting this error.

[kiritigowda]

@SijinJohn follow instructions below, see the Travis build log for more information.

Build OpenVX 1.3 on Raspberry Pi

• Git Clone project with a recursive flag to get submodules

git clone --recursive https://github.com/KhronosGroup/OpenVX-sample-impl.git

• Use Build.py script

cd OpenVX-sample-impl/
python Build.py --os=Linux --venum --conf=Debug --conf_vision --enh_vision --conf_nn

• Build and run the conformance

export OPENVX_DIR=$(pwd)/install/Linux/x32/Debug
export VX_TEST_DATA_PATH=$(pwd)/cts/test_data/
mkdir build-cts
cd build-cts
cmake -DOPENVX_INCLUDES=$OPENVX_DIR/include -DOPENVX_LIBRARIES=$OPENVX_DIR/bin/libopenvx.so\;$OPENVX_DIR/bin/libvxu.so\;pthread\;dl\;m\;rt -DOPENVX_CONFORMANCE_VISION=ON -DOPENVX_USE_ENHANCED_VISION=ON -DOPENVX_CONFORMANCE_NEURAL_NETWORKS=ON ../cts/
cmake --build .
LD_LIBRARY_PATH=./lib ./bin/vx_test_conformance

[SijinJohn]

@kiritigowda
When i run this:- cmake --build .
I get this
Scanning dependencies of target generate_version_file
-- Get version information
-- Version: 7aed89e
[ 0%] Built target generate_version_file
Scanning dependencies of target test_engine
[ 1%] Building C object test_engine/CMakeFiles/test_engine.dir/test_bmp.c.o
In file included from /home/pi/OpenVX/OpenVX-sample-impl/cts/test_engine/test.h:91,
from /home/pi/OpenVX/OpenVX-sample-impl/cts/test_engine/test_bmp.c:18:
/home/pi/OpenVX/OpenVX-sample-impl/cts/test_engine/test_utils.h:21:10: fatal error: VX/vx.h: No such file or directory
#include <VX/vx.h>
^~~~~~~~~
compilation terminated.
make[2]: *** [test_engine/CMakeFiles/test_engine.dir/build.make:82: test_engine/CMakeFiles/test_engine.dir/test_bmp.c.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:223: test_engine/CMakeFiles/test_engine.dir/all] Error 2
make: *** [Makefile:149: all] Error 2