在Linux上安装Ruby on Rails Bundle时出现问题

Question

la@la:~/myapp$ gem install json -v '1.8.6'

Fetching: json-1.8.6.gem (100%)

ERROR:  While executing gem ... (Gem::FilePermissionError)
    You don't have write permissions for the /var/lib/gems/2.3.0 directory.

la@la:~/myapp$ 

Answer 1

转到项目的GEMFILE文件。编辑此文件并添加

gem 'json', '~> 1.8', '>= 1.8.6'

保存文件并转到终端，然后运行

bundle install

Answer 2

要在系统中安装gem，您必须是超级用户。 要安装gem，请使用sudo运行它：

sudo gem install json -v '1.8.6'