DNS_PROBE_FINISHED_BAD_CONFIG

Question

I've DNS_PROBE_FINISHED_BAD_CONFIG issue.

I did try the methods given on these 2 links:

1. dns-probe-finished-bad-config-in-xubuntu-17-04

2. dns-probe-finished-bad-config-error-in-ubuntu-14-04

but no difference. I am still getting that problem. I did these codes:

sudo dpkg-reconfigure resolvconf

and then

sudo rm -i /etc/resolv.conf
sudo ln -s /run/resolvconf/resolv.conf /etc/resolv.conf
sudo resolvconf -u

and also rebooted.

The terminal did not show any sort of failure, or as much as I know.

Finally also installed dnsq packacge, (sorry I don't rememeber) but still facing the problem.