I get this error when i ran my rails app on my OSX and i tried to upload an image.
I have a "product" model and i am using Mini_Magick with CarrierWave for uploading the product's image. When i create a product on my ubuntu's laptop, it works fine, but when i do that on my macbook, it throws the error:
Image Failed to manipulate with MiniMagick, maybe it is not an image? Original Error:
ImageMagick/GraphicsMagick is not installed
I have done the "bundle install" command and everything works fine... do you know what could be the problem?
I am thinking that you may now have some of the foundations on your OSX. You can try removing everything and start again:
to uninstall
brew uninstall imagemagick graphicsmagick libpng jpeg
brew cleanup -s
To install
brew install graphicsmagick
Hope that this works for you