Issue in example for 1.8.0

Unity Engine
,
2

This is a known issue in the documentation and it does need a parameter:

private int m_Count;

void Update()
{
    if (IsClient && Input.GetKeyDown(KeyCode.P))
    {
        // Client -> Server because PingRpc sends to Server
        m_Count++;
        PingRpc(m_Count);
    }
}

The documentation should be updated soon with fixes to a few known existing issues in the most recent update.