When I run a bolt command now. I get a new error:

bolt command run "uname -n" --targets linux

Started on camnpunbutt.cam.scsc.local...

`could not load private key file

/home/nbutt/.ssh/config': OpenSSL::PKey::PKeyError (Could not parse PKey: no start line)

all authorization methods failed (tried none, publickey, password)

Failed on camnpunbutt.cam.scsc.local:

Authentication failed for user nbutt@camnpunbutt

Failed on 1 target: camnpunbutt.cam.scsc.local

Ran on 1 target in 0.13 sec