rvm安装时候会有这样的提醒，所以来问问大家这到底是怎么解决的，希望大伙儿能帮帮忙，新人在这里先谢过了，非常感谢。
Checking requirements for ubuntu.
Installing requirements for ubuntu.
Updating system.......................................
Error running 'requirements_debian_update_system ruby-2.2.0',
showing last 15 lines of /usr/local/rvm/log/1421067223_ruby-2.2.0/update_system.log
++ case "${TERM:-dumb}" in
++ case "$1" in
++ [[ -t 2 ]]
++ return 1
++ printf %b 'There has been error while updating '\''apt-get'\'', please give it some time and try again later.
404 errors should be fixed for rvm to proceed. Check your sources configured in:
/etc/apt/sources.list
/etc/apt/sources.list.d/*.list
\n'
There has been error while updating 'apt-get', please give it some time and try again later.
404 errors should be fixed for rvm to proceed. Check your sources configured in:
/etc/apt/sources.list
/etc/apt/sources.list.d/*.list
++ return 100
Requirements installation failed with status: 100.
Checking requirements for ubuntu.
Installing requirements for ubuntu.
Updating system.......................................
Error running 'requirements_debian_update_system ruby-2.2.0',
showing last 15 lines of /usr/local/rvm/log/1421067223_ruby-2.2.0/update_system.log
++ case "${TERM:-dumb}" in
++ case "$1" in
++ [[ -t 2 ]]
++ return 1
++ printf %b 'There has been error while updating '\''apt-get'\'', please give it some time and try again later.
404 errors should be fixed for rvm to proceed. Check your sources configured in:
/etc/apt/sources.list
/etc/apt/sources.list.d/*.list
\n'
There has been error while updating 'apt-get', please give it some time and try again later.
404 errors should be fixed for rvm to proceed. Check your sources configured in:
/etc/apt/sources.list
/etc/apt/sources.list.d/*.list
++ return 100
Requirements installation failed with status: 100.
