Suricata

This is Suricata 3.2.1 Release
sc_err_syscall<50>: failure when trying to get MTU via ioctl for:\device\..: invalid argument (22)

sc_err_fopen<44> error opening file Suricata\\\threshold.config (this may be fixed by deleting two of the \\ but I didn't tried to change it).

sc_err_invalid_value<130> name of device should not be null

sc_err_syscall<50>: failure when trying to get MTU via ioctl for:\device\..: invalid argument (22)

sc_err_pcap-activate_handle<27> couldn't activate the pcap handler. error error opening adapter; the system cannot find the device specified <20>
sc_err_thread_init<49> thread "RX#01-{null}" closed on initiation
sc_err_initalization<45> engine initalization failed. aborting..

Any help? How do I fix all these errors and run an IDS scan?