Not able to use WIFI... throwing Preferences Error
The wifi has an exclamation mark. Can't use wifi. Not able to turn on. Throwing preferences error whenever I try to open Network from System Preferences. Also not able to find SystemConfiguration under Library/Preferences/SystemConfiguration. Not able to run diagnostics as well.
I have tried to remove the DNS cache. Restarted system quite a few time, etc. nothing is working for me.
Please help.