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there was an error in network preferences

  1. M

    WIFI problem "Preferences Error"

    I have Yosemite and I have a problem with deleting a SSID. When I perform a delete I get the message "Preferences Error" "There was an error in Network Preferences" I have delete the old /Library/preferences/Startup/Systemconfiguration file and reinstalled Yosemite but I still get the error...