Can't run default task without error on imagemin task

[Mitchell Renton]

Hey,
I've set this up as you've descibed in the repo, but I get an error on the imagemin task...

Fatal error: Cannot read property 'contents' of undefined

Any ideas what might be causing this?

[Lee Munroe]

Thanks. Got the same issue. Upgraded the imagemin version to 1.0.0 after finding this.