Debian stretch install

[KKing]

I'm running Debian Stretch, I did have Wine installed via Debians repositary but ran apt-get remove wine and then tried following the instructions at https://wiki.winehq.org/Debian
I presume the last responses are not expected?
<<
# wget -nc https://dl.winehq.org/wine-builds/Release.key
--2018-08-30 10:28:43-- https://dl.winehq.org/wine-builds/Release.key
Resolving dl.winehq.org (dl.winehq.org)... 151.101.18.217
Connecting to dl.winehq.org (dl.winehq.org)|151.101.18.217|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 3122 (3.0K) [application/pgp-keys]
Saving to: ‘Release.key’

Release.key 100%[===================>] 3.05K --.-KB/s in 0s

2018-08-30 10:28:43 (123 MB/s) - ‘Release.key’ saved [3122/3122]

# apt-key add Release.key
gpg: WARNING: nothing exported
gpg: no valid OpenPGP data found.
gpg: Total number processed: 0
>>

[spoon0042]

Some searching suggests something happened to /etc/apt/trusted.gpg and to delete or rename it and try again.

[KKing]

Thankyou, that did resolve the issue and I was then able to install the stable branch.