[SOLVED] CI 3.1.0 ImageMagick not working

GD2 has no support for SVG images, so you indeed need to use ImageMagik. You can try using the function below instead of the exec() approach.

PHP Code:

function svg2png($originalFile, $outputFile, $width=800, $height=600) {
    $image = new \Imagick(realpath($originalFile));
    $image->setImageFormat("png24");
    $image->resizeImage($width, $height, imagick::FILTER_LANCZOS, 1); 
    $image->writeImage($outputFile);    
}