beew edited a comment on issue #18985:
URL:
https://github.com/apache/incubator-mxnet/issues/18985#issuecomment-683368886
It took a while, the R-package not found issue is solved but I got another
error
```
g++ -std=gnu++11 -I"/usr/share/R/include" -DNDEBUG -I../inst/include
-I'/usr/lib/R/site-library/Rcpp/include' -fpic -g -O2
-fdebug-prefix-map=/build/r-base-5iUtQS/r-base-4.0.2=. -fstack-protector-strong
-Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -g -c
export.cc -o export.o
g++ -std=gnu++11 -I"/usr/share/R/include" -DNDEBUG -I../inst/include
-I'/usr/lib/R/site-library/Rcpp/include' -fpic -g -O2
-fdebug-prefix-map=/build/r-base-5iUtQS/r-base-4.0.2=. -fstack-protector-strong
-Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -g -c
im2rec.cc -o im2rec.o
im2rec.cc:39:10: fatal error: opencv2/opencv.hpp: No such file or directory
39 | #include <opencv2/opencv.hpp>
```
but I have already installed libopencv-dev and opencv2/opencv.hpp is in
/usr/include/opencv4/opencv2/opencv.hpp
Should I just make a symlink of /usr/include/opencv4/opencv2/ to
/usr/local/include/opencv2?
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