Rails 5, “nil is not a valid asset source”

Question

I have just upgraded to Rails 5 and I have a weird issue while trying to show an image.

I have the exact code I had for Rails 4:

<%= image_tag article         


        

Answer 1

I hope this code snippet will help those future readers.

<%= image_tag image.picture.url, size: "100x100" unless image.picture.url.blank? %>

without that unless image.picture.url.blank? part of the code,

"nil is not a valid asset source"

shows up when uploading empty image.