Resin sync error with permission denied

I am trying to use resin snyc in order to sync local changes to the container.

I have added the ssh keys (RSA) in the dashboard, and did

resin login

When I try resin ssh I can successfully ssh into my device, which I believe the SSH keys have been successfully added.

However, when I try to sync using the following command, I get a public key error.

$ sudo resin sync -s . -d /usr/catkin_ws/src
Getting information for device: 4baa6ee5a25625117912cbe7a766239c
Got application container info.
\ Syncing to /usr/catkin_ws/src on 4baa6ee...Permission denied (publickey).
rsync: connection unexpectedly closed (0 bytes received so far) [sender]
rsync error: unexplained error (code 255) at io.c(226) [sender=3.1.1]
Synced /usr/catkin_ws/src on 4baa6ee.
Application container started after failed 'sync'.
resin sync failed. Error: Child process exited with code 255
Child process exited with code 255

If you need help, don't hesitate in contacting us at:


Is there an additional process required in order to use resin sync that is not documented?

Thank you in advance,

Could you let us know the version of the following applications on the computer initiating the connection, and the permissions (but not any identifying information) on your keys directory.

  • ssh -V
  • resin version
  • rsync --version
  • ls -la ~/.ssh

I saw the same error when running the command with sudo. I would recommend trying without.