ERROR: knife encountered an unexpected error

[vgul]

I got

ERROR: knife encountered an unexpected error
This may be a bug in the 'ec2 server create' knife command or plugin
Please collect the output of this command with the -VV option before filing a bug report.
Exception: NoMethodError: undefined method `empty?' for nil:NilClass

log attached as
http://pastie.org/pastes/10703066/text?key=6i6mph7rsmfxaqqq6sv3gq

[gmiranda23]

I also encountered this error when not specifying a run_list. Providing a run_list seems to resolve the issue. If you have no run_list to provide, a workaround currently appears to be to provide a blank run_list (e.g. knife ec2 server create [settings] -r '')

[btm]

This is a dupe of #370, which is fixed in knife-ec2 0.13.0, released on 8/8/16.