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I am in need of creating a software with client/server connection for a local event in the near future. I tried just doing the simple example of the Processing Network page https://processing.org/tutorials/network/ but I can't even run it as BOTH client and server constructs come back as errors (no changes to code). I cannot find a more modern introduction as even the Processing 3.0 for Client and Server use the exact same construct https://processing.org/reference/libraries/net/Client.html. Can I please get some help.