Problem downloading from Google Play Books to ADE. E_adept_document_type_unknown

[#1]

I bought an ebook from Google yesterday. I have downloaded it to my laptop and tried to transfer it to the ADE Library and I am getting the following error:

E_adept_document_type_unknown

I contacted Google and they have stated that there is no problem with the ebook and that the issue is with ADE.

Can anyone help me?

[#2]

I bought an ebook from Google yesterday. I have downloaded it to my laptop and tried to transfer it to the ADE Library and I am getting the following error:

E_adept_document_type_unknown

I contacted Google and they have stated that there is no problem with the ebook and that the issue is with ADE.

Can anyone help me?

[#3]

Which os you are used?
How you download the eBook to ADE?

Which format has your eBook of Google Play?

[#4]

Hi,

I'm using Chrome OS. Book downloaded to laptop as EPUB then open ADE to transfer across.