Got "unknown user exception" when use --step-load and --step-clients

[yunfan]

Describe the bug

i was using the typical step-load mode copy from the document

locust --headless -u 1000 -r 100 --run-time 30m --step-load --step-clients 10 --step-time 20m

and got a "unknown user exception like the follow

[2020-05-19 20:41:59,569] brix/ERROR/locust.main: Unknown User(s): 10

Environment

• OS: ubuntu 20.04 x86_64
• Python version: 3.8.2
• Locust version: 1.0.1
• Locust command line that you ran: locust --headless -u 1000 -r 100 --run-time 30m --step-load --step-clients 10 --step-time 20m
• Locust file contents (anonymized if necessary):

[cyberw]

the parameter is now called --step-users, not --step-clients.

I'll admit, the error message is really confusing though :)

[yunfan]

thanks. that parameter works