A statement on the festival's official site reads:
"Stately Events Ltd is extremely disappointed to announce the cancellation of the Wild in the Country festival at Knebworth Park on Saturday 5th July. This is a very sad conclusion to our passionate efforts to develop an interesting and credible addition to the UK festival market. Unfortunately, Wild in the Country has become the latest in a series of festivals that have suffered from a unique and well-documented set of market forces this summer."
Read more here, where comments include, "Two days notice, it's an absolute disgrace. No doubt we'll have to wait weeks to see our money again. I feel for all the people who have booked flights etc".
Due to appear were acts including Soulwax, The Presets, Foals and Hercules & Love Affair.