It looks like there is already a DNS server or forwarder installed and listening on 127.0.0.1.

[meaverick]

pi@Pi3:~ $ uname -a
Linux Pi3 4.4.9-v7+ #884 SMP Fri May 6 17:28:59 BST 2016 armv7l GNU/Linux
pi@Pi3:~ $ ./dnscrypt-autoinstall.sh
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 185 100 185 0 0 88 0 0:00:02 0:00:02 --:--:-- 88
100 8810 0 8810 0 0 3560 0 --:--:-- 0:00:02 --:--:-- 4301k
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 185 100 185 0 0 89 0 0:00:02 0:00:02 --:--:-- 89
100 3815 0 3815 0 0 792 0 --:--:-- 0:00:04 --:--:-- 2768

Error!

It looks like there is already a DNS server
or forwarder installed and listening on 127.0.0.1.

To use DNSCypt, you need to either uninstall it
or make it listen on another IP than 127.0.0.1.

To uninstall DNSCrypt, try running this script
again with the 'forcedel' argument. For example:
./dnscrypt-autoinstall.sh

forcedel

[simonclausen]

Reopen if this is still an issue with a description of what's wrong