I have been using FileZilla to manage files on my GCP VM using SFTP. I created a key pair using KeyGen on Ubuntu Linux, copied the pub key into the SSH Keys on my VM instance and loaded the private key into FileZilla, where it converted it to a ppk format. That worked great.
This weekend, my pub key expired, so I created a new key pair and placed the keys in the same way I had previously. But now, FileZilla gives me an error "Error: Disconnected: No supported authentication methods available (server sent: publickey)".
I tried putting the pub key in the VM instance, in the project, and in both places at once, but no combination has worked.
Per other solutions I found online, I have ensured that the local key files are in a folder that FileZilla has full access to.
I've been fighting with this for hours, and am at wit's end.
Edit: Here's the sequences of messages on FileZilla when I try to connect:
Status: Connecting to 188.8.131.52... Response: fzSftp started, protocol_version=4 Command: keyfile "/home/steve/.ssh/teamifi-key.ppk" Command: open "firstname.lastname@example.org" 22 Error: Disconnected: No supported authentication methods available (server sent: publickey) Error: Could not connect to server