An error has occurred while trying to get the stream data. Is the channel online? Is the channel name correct?

[alanfrosts]

I have this error when i try to start the bot the channel name is correct even tried with popular channels

twitch-viewer-master>twitch-viewer.py ninja
Obtaining the channel...
Obtained the channel
Preparing the processes...
An error has occurred while trying to get the stream data. Is the channel online? Is the channel name correct?

Thanks .

[vmmelo]

I think it sould be enclosed in quotation marks: twitch-viewer.py "ninja"