Erika,
I was running into the same thing, and came across this thread during my research. I know it's a bit late, but since this question is still marked as "unanswered" I wanted to share what was taught to me in the hopes of helping you or anyone else who reads this blog post in the future.
Colin Lawrence responded to me and said: "The message you are seeing is more of a result and not an error message. You will see several of these come back in the logs when a download fails, but you will want to scroll a little further until you find the error message.If you are having trouble locating it, sometimes its easy to clear the logs first so you are not seeing older messages. Use the trash icon in the top right on the logs page and then reproduce the download failure again. Again you might have to scroll through some of the exploded map file messages, but your error should be in there."
So, you would need to identify the actual error message before doing any other troubleshooting. Hope that helps
Best,
Katie
“The goal is not simply to ‘work hard, play hard.’ The goal is to make our work and our play indistinguishable.”
- Simon Sinek