Can't import SVG created with illustrator Sketch is fine

The specific problem is that NO svg’s created in illustrator can be imported which I find bizarre as most tutorials about making fritzing components mention illustrator. I’ve searched the web and this problem has been around for 4 and a half years and is very common yet I haven’t found any solution other than what I described above.

Are there any specific settings to be aware of when saving an svg from illustrator? Just the act of saving an SVG extracted from fritzing makes it invalid. I’ve tried with the simplest file, just a square to no avail. I was going to post a screen grab of the error message but I can’t evn do that now, the message displays for a split second before fritzing crashes.