Quickstart Dashboard

I tried to initiate the sync process multiple times for a site that has a lot of content. For several times when I attempted this, I got the error message displayed in the WP admin page:

> Requesting package (this may take a minute): Failed.

I tried again with some error logging enabled and I found that the response of `wp_remote_get()` contains the status `404 Not Found` and the body is:

```json
{"error":"package_generation_error","message":"Package generation failed due to an internal error. Please try again later."}
```

After several attempts, I finally got a "Done" message for requesting the package, and the response body included:

```json
{"complete":true,"package":"https:\/\/transfer-api.wordpress.com\/v0\/quickstart\/101\/files\/package\/","key":"....."}
```