I am trying to deploy an R plumber API on digital ocean(DO). I am following these steps for DO.
I am using PuTTY to create ssh keys and followed steps provided here and upload the keys as mentioned here .

I am successful in creating a droplet from RStudio but receive an “Error: Please install ssh”. I am unable to install any R package such as a plumber. I am also not able to see “Plumber is alive” when using IP address of droplet in the browser.

I can connect to the server using PuTTY app consol as root@IP address and passphrase key. but unable to see any result in the browser window except “page not found”.

Any help would be highly apprecied.

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Have you followed the steps hereon how to add SSH client to rstudio: