getSize() error when installing Stucco on concrete5-8.1.0Browser Info Environment
An unexpected error occurred.
Call to a member function getSize() on a non-object
take a look at the following link:
I believe the getSize() error you are receiving is because of an issue related to SVG images.
The issue is covered in this discussion:
Installing the ImageMagick PHP extension (imagick.so) appears to fix the error.