Wipebook commented on Array{"errors":{"line_items":"expected Hash to be a Array"}}

I had a similar issue to the line_items":"expected Hash to be a Array" and the issue was that my line_item array skipped a digit. 

Ex:

line_item -> array[0]

line_item ->array[1]

line_item ->array[3]

Once I fixed it the loop that was generating the wrong counter, it properly uploaded.

Cheers