Today I flashed a new SD card and I’m trying to reinstall Retroarch from this guide. Mind you, I had already done that successfully on the original SD card. But this time, when I execute:
I get a lot of 404 errors like this:
E: Failed to fetch http://security.debian.org/debian-security/pool/updates/main/f/ffmpeg/libavdevice-dev_3.2.10-1~deb9u1_armhf.deb 404 Not Found
And at the end:
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
E: Failed to process build dependencies
What should I do?