compiling error

[gomezramones]

I have changed some part in the code on CameraManager.cpp, the void CameraManager::update() function. I put

cv::Mat img;
img = toCv(videoMatrix).clone();
cv::Mat lookUpTable(1, 256, CV_8U);
unsigned char p = lookUpTable.ptr();
for (int i = 0; i < 256; i++) {
p[i] = saturate_cast(pow(i / 255.0, 0.5) * 255.0);
}
cv::LUT(img, lookUpTable, img);
copy(img, videoMatrix);*

And now it sends me an error

In file included from /home/pi/openFrameworks/of_v0.10.0_linuxarmv6l_release/addons/ofxCv/src/ofxCv.h:23:0,
from src/CameraManager.h:17,
from src/CameraManager.cpp:7:
/home/pi/openFrameworks/of_v0.10.0_linuxarmv6l_release/addons/ofxCv/libs/ofxCv/include/ofxCv/Tracker.h: In member function ‘virtual const std::vector& ofxCv::RectTracker::track(const std::vector<cv::Rect_ >&)’:
/home/pi/openFrameworks/of_v0.10.0_linuxarmv6l_release/addons/ofxCv/libs/ofxCv/include/ofxCv/Tracker.h:326:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i = 0; i < labels.size(); i++) {
~~^~~~~~~~~~~~~~~
src/CameraManager.cpp: In member function ‘void CameraManager::setup(Camera_Configuration)’:
src/CameraManager.cpp:18:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < _cameraConfig.maskCoord.size(); i++)
~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from src/CameraManager.h:20:0,
from src/CameraManager.cpp:7:
/home/pi/openFrameworks/of_v0.10.0_linuxarmv6l_release/addons/ofxCvPiCam/src/ofxCvPiCam.h: At global scope:
/home/pi/openFrameworks/of_v0.10.0_linuxarmv6l_release/addons/ofxCvPiCam/src/ofxCvPiCam.h:200:13: warning: ‘void color_callback(MMAL_PORT_T*, MMAL_BUFFER_HEADER_T*)’ declared ‘static’ but never defined [-Wunused-function]
static void color_callback(MMAL_PORT_T , MMAL_BUFFER_HEADER_T );
^~~~~~~~~~~~~~
/home/pi/openFrameworks/of_v0.10.0_linuxarmv6l_release/addons/ofxCvPiCam/src/ofxCvPiCam.h:201:13: warning: ‘void gray_callback(MMAL_PORT_T, MMAL_BUFFER_HEADER_T)’ declared ‘static’ but never defined [-Wunused-function]
static void gray_callback(MMAL_PORT_T *, MMAL_BUFFER_HEADER_T *);
^~~~~~~~~~~~~
../../../libs/openFrameworksCompiled/project/makefileCommon/compile.project.mk:221: recipe for target 'obj/linuxarmv6l/Release/src/CameraManager.o' failed
make[1]: *** [obj/linuxarmv6l/Release/src/CameraManager.o] Error 2
make[1]: Leaving directory '/home/pi/openFrameworks/of_v0.10.0_linuxarmv6l_release/apps/Footfall/Footfall'
../../../libs/openFrameworksCompiled/project/makefileCommon/compile.project.mk:124: recipe for target 'Release' failed

[luiscesjr]

I am running into the same error, but somewhat different circumstances. I simply cloned git and executed make as per instruction:

pi@raspberrypi:~/openFrameworks/apps/Footfall/Footfall $ make -j3
HOST_OS=Linux
checking pkg-config libraries:   cairo zlib gstreamer-app-1.0 gstreamer-1.0 gstreamer-video-1.0 gstreamer-base-1.0 libudev freetype2 fontconfig sndfile openal libcurl glfw3 rtaudio gtk+-3.0
with PKG_CONFIG_LIBDIR=
Compiling OF library for Release
make[1]: Entering directory '/home/pi/openFrameworks/libs/openFrameworksCompiled/project'
HOST_OS=Linux
checking pkg-config libraries:   cairo zlib gstreamer-app-1.0 gstreamer-1.0 gstreamer-video-1.0 gstreamer-base-1.0 libudev freetype2 fontconfig sndfile openal libcurl glfw3 rtaudio gtk+-3.0
with PKG_CONFIG_LIBDIR=
HOST_OS=Linux
checking pkg-config libraries:   cairo zlib gstreamer-app-1.0 gstreamer-1.0 gstreamer-video-1.0 gstreamer-base-1.0 libudev freetype2 fontconfig sndfile openal libcurl glfw3 rtaudio gtk+-3.0
with PKG_CONFIG_LIBDIR=
HOST_OS=Linux
checking pkg-config libraries:   cairo zlib gstreamer-app-1.0 gstreamer-1.0 gstreamer-video-1.0 gstreamer-base-1.0 libudev freetype2 fontconfig sndfile openal libcurl glfw3 rtaudio gtk+-3.0
with PKG_CONFIG_LIBDIR=
Done!
make[1]: Leaving directory '/home/pi/openFrameworks/libs/openFrameworksCompiled/project'


Compiling Footfall for Release
make[1]: Entering directory '/home/pi/openFrameworks/apps/Footfall/Footfall'
HOST_OS=Linux
checking pkg-config libraries:   cairo zlib gstreamer-app-1.0 gstreamer-1.0 gstreamer-video-1.0 gstreamer-base-1.0 libudev freetype2 fontconfig sndfile openal libcurl glfw3 rtaudio gtk+-3.0
with PKG_CONFIG_LIBDIR=
make[1]: *** No rule to make target '/home/pi/openFrameworks/addons/obj/linuxarmv6l/Release/ofxCsv/./src/CsvManager.o', needed by 'bin/Footfall'.  Pare.
make[1]: ** Esperando que outros processos terminem.
cat: obj/linuxarmv6l/Release/.compiler_flags: Arquivo ou diretório não encontrado
make[1]: Leaving directory '/home/pi/openFrameworks/apps/Footfall/Footfall'
/home/pi/openFrameworks/libs/openFrameworksCompiled/project/makefileCommon/compile.project.mk:124: recipe for target 'Release' failed
make: *** [Release] Error 2

I am yet to do the alternative listed on the help file here, who knows.
A similar error was on issue 28, that was closed, and as I saw it nobody found a solution on it.

[iverdugos]

stlink-org/stlink#625

first 'make', then, after the error, 'make clean'. Finally 'make' again. It will compile. At least it did on my Rasberry Pi 3 model B