Check old driver and unload it.
Build the module and install
/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_n.c:14545:1: e
rror: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘rtl8168_init_boar
d’
/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_n.c:14715:1: e
rror: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘rtl8168_init_sequ
ence’
/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_n.c:14968:1: e
rror: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘rtl8168_init_one’
/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_n.c:15132:1: e
rror: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘rtl8168_remove_on
e’
/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_n.c:17651:12:
error: ‘rtl8168_init_one’ undeclared here (not in a function)
/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_n.c:17652:2: e
rror: implicit declaration of function ‘__devexit_p’ [-Werror=implicit-function-
declaration]
/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_n.c:17652:25:
error: ‘rtl8168_remove_one’ undeclared here (not in a function)
/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_n.c:17301:12:
warning: ‘rtl8168_poll’ defined but not used [-Wunused-function]
/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_n.c:1368:1: wa
rning: ‘rtl8168_xmii_reset_pending’ defined but not used [-Wunused-function]
/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_n.c:1383:1: wa
rning: ‘rtl8168_xmii_link_ok’ defined but not used [-Wunused-function]
/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_n.c:1395:1: wa
rning: ‘rtl8168_xmii_reset_enable’ defined but not used [-Wunused-function]
/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_n.c:1544:1: wa
rning: ‘rtl8168_link_option’ defined but not used [-Wunused-function]
/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_n.c:1823:1: wa
rning: ‘rtl8168_set_speed_xmii’ defined but not used [-Wunused-function]
/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_n.c:2151:13: w
arning: ‘rtl8168_gset_xmii’ defined but not used [-Wunused-function]
/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_n.c:2886:13: w
arning: ‘rtl8168_get_mac_version’ defined but not used [-Wunused-function]
/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_n.c:3002:1: wa
rning: ‘rtl8168_print_mac_version’ defined but not used [-Wunused-function]
/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_n.c:3044:1: wa
rning: ‘rtl8168_hw_phy_config’ defined but not used [-Wunused-function]
/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_n.c:13681:1: w
arning: ‘rtl8168_release_board’ defined but not used [-Wunused-function]
/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_n.c:14914:17:
warning: ‘rtl8168_try_msi’ defined but not used [-Wunused-function]
cc1: some warnings being treated as errors
make[3]: *** [/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/src/r8168_
n.o] Error 1
make[2]: *** [_module_/media/Ubuntu-Spinner/home/cad/Downloads/r8168-8.035.00/sr
c] Error 2
make[1]: *** [modules] Error 2
make: *** [modules] Error 2