Permission denied, please try again.

[carocean]

CJdeMacBook-Pro:Helpers carocean$ /Applications/Xpra.app/Contents/Helpers/Xpra --ssh="ssh -p 8055" attach ssh:docker@localhost:10
2017-01-13 01:16:05,918 Xpra gtk2 client version 1.0-r14502 32-bit
2017-01-13 01:16:05,918 running on Mac OS X 10.12.2
2017-01-13 01:16:06,446 GStreamer version 1.8.3 for Python 2.7.12 32-bit
2017-01-13 01:16:06,797 OpenGL_accelerate module loaded
2017-01-13 01:16:06,815 using default keyboard settings
2017-01-13 01:16:06,962 desktop size is 1280x800 with 1 screen:
2017-01-13 01:16:06,962 cjdemacbook-pro.local (451x282 mm - DPI: 72x72) workarea: 1280x773 at 0x31
2017-01-13 01:16:06,962 monitor 1
[email protected]'s password:
Permission denied, please try again.
[email protected]'s password:
Permission denied, please try again.
[email protected]'s password:
Permission denied (publickey,password).
2017-01-13 01:16:09,060 Error: failed to receive anything, not an xpra server?
2017-01-13 01:16:09,060 could also be the wrong protocol, username, password or port
2017-01-13 01:16:09,060 Connection lost

[carocean]

Permission denied (publickey,password).why?