keep print null in the example

[Yan Xu]

Hi, I cannot recover the results in the example. I have made sure adding R to system path. Is there anything else I can check? Thank you.

[Ricardo Corassa]

Hi, I have the same problem!

[Yan Xu]

This issues have been solved by starting the server with port 5307: ocpu_start_server(5307)

[Volodymyr Katanskyi]

Have same issue here. I don't understand how it builds path, but seems like not working at all for me