Cannot boot to Raspbian (First Install)

romanCitizen

Hello everyone! Today I decided to give Retro-Pie a go, but unfortunately, the tutorial at https://blog.petrockblock.com/2012/07/22/retropie-setup-an-initialization-script-for-retroarch-on-the-raspberry-pi didn't work for me.
When I tried to do

sudo apt-get install -y git dialog

the terminal responded with

/usr/sbin/update-info-dir: 3: /etc/default/locale: =: not found
dpkg: error processing package install-info (--configure):
 subprocess installed post-installation script returned error exit status 127
Errors were encountered while processing:
 install-info
E: Sub-process /usr/bin/dpkg returned an error code (1)

I tried ignoring that and proceeded with the tutorial, but when I tried to run

sudo ./retropie_setup.sh

it came up with

Sorry - Raspbian/Debian Stretch (and newer) is not yet supported on the RPI

Distributor ID:	Raspbian
Description:	Raspbian GNU/Linux 9.6 (stretch)
Release:	9.6
Codename:	stretch

Can someone please tell me what I am doing wrong? FYI I am running Raspbian Stretch on a Raspberry Pi 3B. Thanks in advance.

herb_fargus

@romanCitizen that's way out of date. Use the current docs.

https://retropie.org.uk/docs/First-Installation/