Can't start the xpra display

[Tom-Ren]

Dear all:
I have meet this problem, every thing is ok follow the "readme", but I can't start a graph interface, could you please give me some advice?
Best regard

==============These are the screen log, but there is no graphic=======<<<<
$ xpra --ssh="ssh -p 36665" attach ssh:docker@0.0.0.0:10
2017-08-05 11:26:30,316 cannot use pycups for printing: No module named cups
2017-08-05 11:26:30,371 xpra gtk2 client version 0.15.8 (r11211)
2017-08-05 11:26:30,528 PyOpenGL warning: missing accelerate module
2017-08-05 11:26:30,528 PyOpenGL warning: missing array format handlers: numeric, vbo, vbooffset
2017-08-05 11:26:30,528 OpenGL Version: 3.0 Mesa 17.0.7
2017-08-05 11:26:30,529 OpenGL support could not be enabled:
2017-08-05 11:26:30,529 vendor 'nouveau' is blacklisted!
The authenticity of host '[0.0.0.0]:36665 ([0.0.0.0]:36665)' can't be established.
ECDSA key fingerprint is SHA256:23U5ssLRwESQva1fTh4Jc55129hRgn0l+QEs7M8bvoo.
Are you sure you want to continue connecting (yes/no)? 2017-08-05 11:26:30,605 detected keyboard: rules=evdev, model=pc105, layout=us
2017-08-05 11:26:30,606 desktop size is 1920x1080 with 1 screen(s):
2017-08-05 11:26:30,606 ':0.0' (508x285 mm - DPI: 96x96) workarea: 1855x1056 at 65x24
2017-08-05 11:26:30,606 monitor 1 (509x286 mm - DPI: 95x95)