Error: failed to run: img.toBuffer() function

[DDavo]

I have the next code:

`
cv.readImage(path, function(err, img){

  if (err) return resp.end(err.stack);

  if (img.width() < 1 || img.height() < 1) return resp.end('Image has no size');

  img.toBuffer()  // Here the nodejs server just is stopped with no errors

});

`

I have tried with img.toBufferAsync() and the same thing happens

Any leads to fix it will be great!

[stasovlas]

same issue

[bmathews]

If you're on windows, this problem will happen if your version of Visual Studio Build Tools doesn't match what opencv was compiled with.

For vs2015, use this version of opencv: https://github.com/opencv/opencv/releases/download/2.4.13.2/opencv-2.4.13.2-vc14.exe and make sure you're env variable is pointing to the v14 folder.

vc14: The compiler packaged with Visual Studio 2015
vc12: The compiler packaged with Visual Studio 2013
vc11: The compiler packaged with Visual Studio 2012
vc10: The compiler packaged with Visual Studio 2010

[PierrickLozach]

It would be nice if you could change the README to add the multiple versions of VS that are supported and which release needs to be downloaded