Why would I get this error when setting up an option with a dependent option
"The following product isn't currently available in our store: error"

I have an option that features 5 colors of an item, each color having a dependent option for the item's length. Each item shows stock, but I continue to get this error, The following product isn't currently available in our store: error

Any thoughts?

What's the stock set to for each color?

Thanks,
David