I get the following error when trying to use the importer. I've blocked out the URL of the website.
The site [my site] is requesting access to your Google Account for the product(s) listed below.
If you grant access, you can revoke access at any time under 'My Account'. [my site] will not have access to your password or any other personal information from your Google Account. Learn more
Warning! This website has not registered with Google to establish a secure connection for authorization requests. We recommend that you continue the process only if you trust the following destination:
WP just says "We were not able to gain access to your account. Try starting over." And it's a loop from there between those screens.
It doesn't even ask for the Blogger login or the URL of the Blogger site that I want to import.