Opencv4nodejs: Error when rebuilding - fatal error: 'opencv2/core.hpp' file not found

Created on 17 Oct 2019 · 15Comments · Source: justadudewhohacks/opencv4nodejs

Today I was upgrading from opencv4nodejs 4.9.1 to 5.3.0 when I ran into this error.

I am using opencv4nodejs in an electron environment and there the below listed error message is triggered when using electron-rebuild, which I guess is similar to this command as it produces more or less the same error.

node-gyp rebuild --jobs max

The building of both opencv4nodejs and opencv-build seems to work fine. The build output has lots of warnings, but ends successfully (see attached file). After that the error is thrown when rebuilding gets triggered.

I have looked at these issues but their solutions do not work for me
https://github.com/justadudewhohacks/opencv4nodejs/issues/591 - I do not have tesseract installed
https://github.com/justadudewhohacks/opencv4nodejs/issues/618 - disabling autobuild is currently not an option for me

Anyone an idea? In the build files I saw that opencv 3.4.6 gets installed by default. Might it make a difference if one builds opencv 4.x with autoBuildOpencvVersion?

Error Message

An unhandled error occurred inside electron-rebuild
gyp info it worked if it ends with ok
gyp info using [email protected]
gyp info using [email protected] | darwin | x64
gyp info find Python using Python version 2.7.16 found at "/usr/local/opt/python@2/bin/python2.7"
gyp info spawn /usr/local/opt/python@2/bin/python2.7
gyp info spawn args [
gyp info spawn args   '/Users/fakob/_jakob/work/fakob_MoviePrintApp_130515/03_Programming/02_Setups/05_Electron/MoviePrint_v004/node_modules/electron-rebuild/node_modules/node-gyp/gyp/gyp_main.py',
gyp info spawn args   'binding.gyp',
gyp info spawn args   '-f',
gyp info spawn args   'make',
gyp info spawn args   '-I',
gyp info spawn args   '/Users/fakob/_jakob/work/fakob_MoviePrintApp_130515/03_Programming/02_Setups/05_Electron/MoviePrint_v004/app/node_modules/opencv4nodejs/build/config.gypi',
gyp info spawn args   '-I',
gyp info spawn args   '/Users/fakob/_jakob/work/fakob_MoviePrintApp_130515/03_Programming/02_Setups/05_Electron/MoviePrint_v004/node_modules/electron-rebuild/node_modules/node-gyp/addon.gypi',
gyp info spawn args   '-I',
gyp info spawn args   '/Users/fakob/.electron-gyp/4.2.10/include/node/common.gypi',
gyp info spawn args   '-Dlibrary=shared_library',
gyp info spawn args   '-Dvisibility=default',
gyp info spawn args   '-Dnode_root_dir=/Users/fakob/.electron-gyp/4.2.10',
gyp info spawn args   '-Dnode_gyp_dir=/Users/fakob/_jakob/work/fakob_MoviePrintApp_130515/03_Programming/02_Setups/05_Electron/MoviePrint_v004/node_modules/electron-rebuild/node_modules/node-gyp',
gyp info spawn args   '-Dnode_lib_file=/Users/fakob/.electron-gyp/4.2.10/<(target_arch)/node.lib',
gyp info spawn args   '-Dmodule_root_dir=/Users/fakob/_jakob/work/fakob_MoviePrintApp_130515/03_Programming/02_Setups/05_Electron/MoviePrint_v004/app/node_modules/opencv4nodejs',
gyp info spawn args   '-Dnode_engine=v8',
gyp info spawn args   '--depth=.',
gyp info spawn args   '--no-parallel',
gyp info spawn args   '--generator-output',
gyp info spawn args   'build',
gyp info spawn args   '-Goutput_dir=.'
gyp info spawn args ]
gyp info spawn make
gyp info spawn args [ 'BUILDTYPE=Release', '-C', 'build' ]
  CXX(target) Release/obj.target/opencv4nodejs/cc/opencv4nodejs.o
In file included from ../cc/opencv4nodejs.cc:2:
In file included from ../cc/ExternalMemTracking.h:1:
../cc/macros.h:2:10: fatal error: 'opencv2/core.hpp' file not found
#include <opencv2/core.hpp>
         ^~~~~~~~~~~~~~~~~~
1 error generated.
make: *** [Release/obj.target/opencv4nodejs/cc/opencv4nodejs.o] Error 1
gyp ERR! build error 
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack     at ChildProcess.onExit (/Users/fakob/_jakob/work/fakob_MoviePrintApp_130515/03_Programming/02_Setups/05_Electron/MoviePrint_v004/node_modules/electron-rebuild/node_modules/node-gyp/lib/build.js:194:23)
gyp ERR! stack     at ChildProcess.emit (events.js:200:13)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:272:12)
gyp ERR! System Darwin 18.7.0
gyp ERR! command "/usr/local/Cellar/node/12.4.0/bin/node" "/Users/fakob/_jakob/work/fakob_MoviePrintApp_130515/03_Programming/02_Setups/05_Electron/MoviePrint_v004/node_modules/electron-rebuild/node_modules/.bin/node-gyp" "rebuild" "--target=4.2.10" "--arch=x64" "--dist-url=https://electronjs.org/headers" "--build-from-source"
gyp ERR! cwd /Users/fakob/_jakob/work/fakob_MoviePrintApp_130515/03_Programming/02_Setups/05_Electron/MoviePrint_v004/app/node_modules/opencv4nodejs
gyp ERR! node -v v12.4.0
gyp ERR! node-gyp -v v5.0.5
gyp ERR! not ok 

Failed with exit code: 1

Auto Build - Full Error Log

auto build seems to be successfull
yarn --verbose build output.txt

Source

fakob

👍4

Most helpful comment

With Ubuntu 18.04 OpenCV 4.1.0.
I make a link to solve this problem.
ln -s /usr/local/include/opencv4/opencv2/ /usr/local/include/opencv2

AMoreaux on 15 Jan 2020

👍8 ❤3 🎉3 🚀2 😄1

All 15 comments

I am having this identical issue on Mac OS 10.15.1. Autobuild runs fine, but Electron rebuild fails with same error.

ztaylor54 on 4 Nov 2019

Got same error on windows.
I checked sln file, it seems including dir was not added when running electron-build.

tdzl2003-deploy on 11 Nov 2019

The same problem here. Seems that electron-rebuild can't include opencv2/core.hpp and i can't find opencv2/core.hpp myself. Is there any solution to this problem?

P0oOOOo0YA on 21 Dec 2019

👍1

With Ubuntu 18.04 OpenCV 4.1.0.
I make a link to solve this problem.
ln -s /usr/local/include/opencv4/opencv2/ /usr/local/include/opencv2

AMoreaux on 15 Jan 2020

👍8 ❤3 🎉3 🚀2 😄1

@justadudewhohacks would adding C:\tools\opencv\build\include to build/opencv4nodejs.vcxproj in properties -> Configurations Properties -> C/C++ -> General -> Additional Include Directories help?
I have seen others using this solution, but when I go to electron-build the sln is obviously overwritten without this modification. (Windows 10, project _not_ in a white-spaced directory)
Cheers!

Vaspra on 3 Feb 2020

Edit: My last suggestion was using the install from opencv's site, not chocolatey. I actually don't think that was the cause, instead I had to use [email protected]. Note that this will not work if you just change your package.json entry to ^5.1.0, as this will simply install 5.5.0 again.

As to why windows freaks out with 5.5.0, I couldn't tell you, but I hope this helps someone.

Vaspra on 3 Feb 2020

👍2

ln -s /usr/local/include/opencv4/opencv2/ /usr/local/include/opencv2

Thanks, this approach solved the issue for me on macOS Catalina and openCV installed via homebrew: ln -s /usr/local/Cellar/opencv/4.2.0_1/include/opencv4/opencv2 /usr/local/Cellar/opencv/4.2.0_1/include/opencv2

benmarten on 15 Feb 2020

👍2

With Ubuntu 18.04 OpenCV 4.1.0.
I make a link to solve this problem.
ln -s /usr/local/include/opencv4/opencv2/ /usr/local/include/opencv2

Having this issue when creating a symlink

dlopen(/Users/ianoderon/Desktop/dev/cam/node_modules/opencv4nodejs/build/Release/opencv4nodejs.node, 1): Symbol not found: __ZNK2cv12MatAllocator23getBufferPoolControllerEPKc
  Referenced from: /Users/ianoderon/Desktop/dev/cam/node_modules/opencv4nodejs/build/Release/opencv4nodejs.node
  Expected in: flat namespace
 in /Users/ianoderon/Desktop/dev/cam/node_modules/opencv4nodejs/build/Release/opencv4nodejs.node

I'm using mac osx 10.14.6

darknblack on 25 Feb 2020

👍1

With Ubuntu 18.04 OpenCV 4.1.0.
I make a link to solve this problem.
ln -s /usr/local/include/opencv4/opencv2/ /usr/local/include/opencv2

Having this issue when creating a symlink
dlopen(/Users/ianoderon/Desktop/dev/cam/node_modules/opencv4nodejs/build/Release/opencv4nodejs.node, 1): Symbol not found: __ZNK2cv12MatAllocator23getBufferPoolControllerEPKc
  Referenced from: /Users/ianoderon/Desktop/dev/cam/node_modules/opencv4nodejs/build/Release/opencv4nodejs.node
  Expected in: flat namespace
 in /Users/ianoderon/Desktop/dev/cam/node_modules/opencv4nodejs/build/Release/opencv4nodejs.node
I'm using mac osx 10.14.6

Have you solved that problem ?

tears743 on 21 Apr 2020

I have done some more testing on mac and windows, but, spoiler alert, I am stuck with the same issues as everyone else.
But for what its worth here are my findings:

The issue started with 5.3.0. The version before (5.2.0) worked fine for me
Regarding the opencv2/core.hpp file not found error, it seems that the defaultIncludeDirs are defined correctly, but somehow might not be triggered? - see install.js
Regarding the Symbol not found error, I am not exactly sure, but believe it has something todo with the libraries not being set/linked correctly.
Maybe @justadudewhohacks has some ideas to point me into the right direction?

Details

My setup

I have set up my own simple electron opencv4nodejs test repository built on electron-react-boilerplate as I had some issues with opencv-electron
I am using the autoBuild feature
I have tested on mac and windows, both with opencv 3 and 4

My tests
To get around the

In file included from ../cc/opencv4nodejs.cc:2:
In file included from ../cc/ExternalMemTracking.h:1:
../cc/macros.h:2:10: fatal error: 'opencv2/core.hpp' file not found
#include <opencv2/core.hpp>
         ^~~~~~~~~~~~~~~~~~

error I had added the include directory path in theapp/node_modules/opencv4nodejs/binding.gyp

"include_dirs" : [
    "<!@(node ./install/parseEnv.js OPENCV4NODEJS_INCLUDES)",
    "cc",
    "cc/core",
    "<!(node -e \"require('nan')\")",
    "<!(node -e \"require('native-node-utils')\")",
    "<(module_root_dir)/../opencv-build/opencv/build/include",
],

I have used the autoBuildOpencvVersion to test if opencv4 makes any difference, but it did not.
For opencv 4 the include path is slightly different

    "<(module_root_dir)/../opencv-build/opencv/build/include/opencv4",

After having fixed the include issue electron-rebuild ends successfully. But when running the application, the Symbol not found error pops up.

Uncaught Error: dlopen(/Users/jakobschindegger/Documents/Electron/electron-opencv4nodejs/app/node_modules/opencv4nodejs/build/Release/opencv4nodejs.node, 1): Symbol not found: __ZNK2cv12MatAllocator23getBufferPoolControllerEPKc
  Referenced from: /Users/jakobschindegger/Documents/Electron/electron-opencv4nodejs/app/node_modules/opencv4nodejs/build/Release/opencv4nodejs.node
  Expected in: flat namespace
 in /Users/jakobschindegger/Documents/Electron/electron-opencv4nodejs/app/node_modules/opencv4nodejs/build/Release/opencv4nodejs.node

This is where I am stuck now. I am not sure how to solve this error.
I had looked at this issue where it seemed that they solved the error, but their solution did not work for me. Maybe because they were not using the autoBuild feature?

fakob on 1 May 2020

👍1

Facing the same issue as @fakob
Is there any known workaround?
(reverting to 5.2.0 fixes the include + linking issues)

cyrildiagne on 8 Aug 2020

Hi @cyrildiagne, unfortunately I do not know any other than reverting to 5.2.0.
The other day I gave it another shot disabling the autoBuild feature, but I ran into the same issue again. Sorry.

fakob on 9 Aug 2020

With Ubuntu 18.04 OpenCV 4.1.0.
I make a link to solve this problem.
ln -s /usr/local/include/opencv4/opencv2/ /usr/local/include/opencv2

Really helpful! Thanks~

julianakuei on 21 Aug 2020

ln -s /usr/local/include/opencv4/opencv2/ /usr/local/include/opencv2

Thanks, this approach solved the issue for me on macOS Catalina and openCV installed via homebrew: ln -s /usr/local/Cellar/opencv/4.2.0_1/include/opencv4/opencv2 /usr/local/Cellar/opencv/4.2.0_1/include/opencv2

I tried to do this approach on macOS Catalina 10.15.6 and it didn't work

luisantos1986 on 19 Sep 2020

I am getting the same issue in electron on Windows, check below, with the following setup
"dependencies": { "electron": "10.1.4", "electron-rebuild": "2.3.2", "opencv4nodejs": "5.6.0" }, "opencv4nodejs": { "disableAutoBuild": 1, "opencvIncludeDir": "C:\\tools\\opencv\\build\\include", "opencvLibDir": "C:\\tools\\opencv\\build\\x64\\vc14\\lib", "opencvBinDir": "C:\\tools\\opencv\\build\\x64\\vc14\\bin" }
fatal error: 'opencv2/core.hpp' file not found