<h5 dir="auto">System information (version)</h5>

<h5 dir="auto">System information (version)</h5>
<ul dir="auto">
<li>OpenCV =&gt; 3.4.0</li>
<li>Operating System / Platform =&gt; Raspbian jessie</li>
<li>Compiler =&gt; python 2.7/python 3</li>
</ul>
<h5 dir="auto">Detailed description</h5>
<h5 dir="auto"></h5>
<p dir="auto">for my project i need to install opencv so i picked the latest version 3.4.0 ...I followed instruction and it was all good with 0 errors but when it comes to build and executing the "make" command it interrupt the operation with this errors :</p>
<hr>
<p dir="auto">[ 39%] Generating perf_precomp.hpp.gch/opencv_perf_dnn_RELEASE.gch<br>
/home/pi/opencv-3.4.0/build/modules/dnn/perf_precomp.hpp:12:20: fatal error: can’t write PCH file<br>
using namespace dnn;<br>
^<br>
compilation terminated.<br>
modules/dnn/CMakeFiles/pch_Generate_opencv_perf_dnn.dir/build.make:62: recipe for target 'modules/dnn/perf_precomp.hpp.gch/opencv_perf_dnn_RELEASE.gch' failed<br>
make[2]: *** [modules/dnn/perf_precomp.hpp.gch/opencv_perf_dnn_RELEASE.gch] Error 1<br>
CMakeFiles/Makefile2:6569: recipe for target 'modules/dnn/CMakeFiles/pch_Generate_opencv_perf_dnn.dir/all' failed<br>
make[1]: *** [modules/dnn/CMakeFiles/pch_Generate_opencv_perf_dnn.dir/all] Error 2<br>
Makefile:160: recipe for target 'all' failed<br>
make: *** [all] Error 2</p>
<hr>
<p dir="auto">i tried to disable c exemples by switching it to OFF but it was the same faillure what should i do to fix it and run opencv correctly ? should i switch to other version ? please help me i already lost 3 days debugging it my self with no progress .thank you</p>
<h5 dir="auto">System information (version)</h5>

<h5 dir="auto">System information (version)</h5>
<ul dir="auto">
<li>OpenCV =&gt; 3.4.0</li>
<li>Operating System / Platform =&gt; Raspbian jessie</li>
<li>Compiler =&gt; python 2.7/python 3</li>
</ul>
<h5 dir="auto">Detailed description</h5>
<h5 dir="auto"></h5>
<p dir="auto">for my project i need to install opencv so i picked the latest version 3.4.0 ...I followed instruction and it was all good with 0 errors but when it comes to build and executing the "make" command it interrupt the operation with this errors :</p>
<hr>
<p dir="auto">[ 39%] Generating perf_precomp.hpp.gch/opencv_perf_dnn_RELEASE.gch<br>
/home/pi/opencv-3.4.0/build/modules/dnn/perf_precomp.hpp:12:20: fatal error: can’t write PCH file<br>
using namespace dnn;<br>
^<br>
compilation terminated.<br>
modules/dnn/CMakeFiles/pch_Generate_opencv_perf_dnn.dir/build.make:62: recipe for target 'modules/dnn/perf_precomp.hpp.gch/opencv_perf_dnn_RELEASE.gch' failed<br>
make[2]: *** [modules/dnn/perf_precomp.hpp.gch/opencv_perf_dnn_RELEASE.gch] Error 1<br>
CMakeFiles/Makefile2:6569: recipe for target 'modules/dnn/CMakeFiles/pch_Generate_opencv_perf_dnn.dir/all' failed<br>
make[1]: *** [modules/dnn/CMakeFiles/pch_Generate_opencv_perf_dnn.dir/all] Error 2<br>
Makefile:160: recipe for target 'all' failed<br>
make: *** [all] Error 2</p>
<hr>
<p dir="auto">i tried to disable c exemples by switching it to OFF but it was the same faillure what should i do to fix it and run opencv correctly ? should i switch to other version ? please help me i already lost 3 days debugging it my self with no progress .thank you</p>