TypeError: publish() got an unexpected keyword argument 'server_info'

[euphoris]

/home/euphoris/.cache/lektor/packages/9295239cf5106ad6efb7b4ee30883ae9
Traceback (most recent call last):
  File "/home/euphoris/repo/lektor/.venv/bin/lektor", line 9, in <module>
    load_entry_point('Lektor==2.0.dev0', 'console_scripts', 'lektor')()
  File "/home/euphoris/repo/lektor/.venv/local/lib/python2.7/site-packages/click/core.py", line 716, in __call__
    return self.main(*args, **kwargs)
  File "/home/euphoris/repo/lektor/.venv/local/lib/python2.7/site-packages/click/core.py", line 696, in main
    rv = self.invoke(ctx)
  File "/home/euphoris/repo/lektor/.venv/local/lib/python2.7/site-packages/click/core.py", line 1060, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/euphoris/repo/lektor/.venv/local/lib/python2.7/site-packages/click/core.py", line 889, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/euphoris/repo/lektor/.venv/local/lib/python2.7/site-packages/click/core.py", line 534, in invoke
    return callback(*args, **kwargs)
  File "/home/euphoris/repo/lektor/.venv/local/lib/python2.7/site-packages/click/decorators.py", line 64, in new_func
    return ctx.invoke(f, obj, *args[1:], **kwargs)
  File "/home/euphoris/repo/lektor/.venv/local/lib/python2.7/site-packages/click/core.py", line 534, in invoke
    return callback(*args, **kwargs)
  File "/home/euphoris/repo/lektor/lektor/cli.py", line 281, in deploy_cmd
    credentials=credentials, server_info=server_info)
  File "/home/euphoris/repo/lektor/lektor/publisher.py", line 629, in publish
    return publisher(env, output_path).publish(url, credentials, **extra)
TypeError: publish() got an unexpected keyword argument 'server_info'