new to linuxCNC; issues with updating and installing software

Hi All,
I've been having a lot of trouble working with the build of Debian Wheezy that is part of the recommended install for LinuxCNC. Whenever I try to run sudo apt-get update or install any kind of program/software, I get 404 errors from repositories and some files fail to download. This seems to be specifically happening with the Debian repositories, but I'm too inexperienced with Linux to know how to fix it. Any help or recommendations on where to look would be greatly appreciated.
Thanks!

Now that Wheezy is eol, you need to change your repository list to point to Debian archives.

See this post
forum.linuxcnc.org/9-installing-linuxcnc...rors?start=20#131411

If you are just starting then use this ISO image instead.
www.linuxcnc.org/testing-stretch-rtpreempt/

Thanks for the help all! This fixed the issue