我刚刚删除了ruby 1.9.1并安装了1.8.7,但是当我查找rails时,我的bash仍然指向1.9.1。
emai@vpc-db:~$ rails --version
bash: /usr/local/bin/rails: /usr/bin/ruby1.9.1: bad interpreter: No such file or directory
emai@vpc-db:~$ ruby --version
ruby 1.8.7 (2011-06-30 patchlevel 352) [x86_64-linux]
有人可以帮忙吗?如何让bash看看1.8.7?
答案 0 :(得分:2)
你的红宝石很老了(截至本周,已正式弃用)。你的宝石安装在/usr/local/bin
。
您可能需要查看rbenv
这可能会立即清除您的问题
之后你有rbenv设置,我就像这样编译我的红宝石
# start in your home directory
cd $HOME
# make a src folder for compiling ruby
mkdir -p .src && cd .src
# download ruby
curl -O ftp://ftp.ruby-lang.org/pub/ruby/2.0/ruby-2.0.0-p247.tar.gz
# extract compressed file
tar -xzf ruby-2.0.0-p247.tar.gz
# cd to folder
cd ruby-2.0.0-p247
# configure
./configure --prefix=$HOME/.rbenv/versions/2.0.0-p247 --with-opt-dir=/path/to/openssl --enable-shared
# make and install
make && make install
# cleanup
rm -rf ruby-2.0.0-p247
现在让我们使用它!
# make rbenv aware of our new rubies
rbenv rehash
# set our new version as the default
rbenv global 2.0.0-p247
# let's check it out!
ruby --version
ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-darwin12.3.0]
现在让我们开始rails
# install rails
gem install rails
# check the version
rails --version
Rails 4.0.0