我正在尝试安装 datamapper,但出现此错误:
Whirlwind:Desktop AGreen$ gem install data_mapper
ERROR: While executing gem ... (Errno::EACCES)
Permission denied - /Users/AGreen/.rvm/gems/ruby-1.9.2-p320/gems/bcrypt-ruby-3.0.1/.gitignore
我也尝试以这种方式安装它:
Whirlwind:Desktop AGreen$ gem install datamapper
ERROR: While executing gem ... (Errno::EACCES)
Permission denied - /Users/AGreen/.rvm/gems/ruby-1.9.2-p320/gems/bcrypt-ruby-3.0.1/.gitignore
有谁知道我该如何解决这个问题?