E:Unable to locate package nginx-plus

Thu Dec 21 07:40:10 UTC 2017

Hi,
While running the command "sudo apt-get install -y nginx-plus". I'm seeing an error and unable to complete the process. Error shown is "E: Unable to locate package nginx-plus".
I'm using Ubuntu 17.10 in virtual box. Please help me in resolving the issue.

Thanks,
Raghu

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