Trouble installing Ruby 2.0.0 on Ubuntu 12.04

Question

I'm installing ruby 2.0.0 but some packages not found. first i use this command

rvm get stable

then i issue command

rvm requirements

i have these errors below

W: Failed to fetch http://ppa.launchpad.net/cheleb/blender-svn/ubuntu/dists/precise/main/source/Sources  404  Not Found
W: Failed to fetch http://ppa.launchpad.net/cheleb/blender-svn/ubuntu/dists/precise/main/binary-amd64/Packages  404  Not Found
W: Failed to fetch http://ppa.launchpad.net/cheleb/blender-svn/ubuntu/dists/precise/main/binary-i386/Packages  404  Not Found
W: Failed to fetch http://ppa.launchpad.net/ferramroberto/oneiric/ubuntu/dists/precise/main/source/Sources  404  Not Found
W: Failed to fetch http://ppa.launchpad.net/ferramroberto/oneiric/ubuntu/dists/precise/main/binary-amd64/Packages  404  Not Found
W: Failed to fetch http://ppa.launchpad.net/ferramroberto/oneiric/ubuntu/dists/precise/main/binary-i386/Packages  404  Not Found

i try to install by following below

https://askubuntu.com/questions/169542/how-do-i-install-the-latest-blender-3d-builds-from-a-ppabut

but no success and on installing ruby 2.0.0 like below

rvm install 2.0.0

give me same error

Can anyone please help.

Answer 1

This looks like a problem with the Blender package. Your system might be hung up on dependencies it can't resolve.

It looks like you're using a bad mirror. I'm not sure how to get Ubuntu to drop that mirror and use a working one, but in other systems it requires deleting the mirror cache file and rebuilding it.