Debian 9 static IP [Failed:] messages at boot?

[conover@rahul.net (John Conover)]

I assigned a static IP via XFce:

    Menu->Settings->Network Connections->->Wired->Wired
    connection 1 1->Edit->IPv4 Settings

    Method: Manuel

These settings work, but early in boot, the following messages is
issued:

    Failed to start Raise network interfaces.

Is that a problem? Can the message be suppressed?

    Thanks,

    John

-- 

John Conover, conover@rahul.net, http://www.johncon.com/