我不断收到此错误'Bundler找不到与gem“ bundler”兼容的版本：'

Question

I'm running Ruby 1.9.3 and Rails 4.0.0, and I'm just starting to learn how to use Ruby on Rails. Whenever I type the command to run the server:

    $ rails s

I get this error:

Bundler could not find compatible versions for gem "bundler":
    In Gemfile:
     rails (= 4.0.0) depends on
      bundler (< 2.0, >= 1.3.0)

   Current Bundler version:
     bundler (1.0.15)

So I updated it and then checked the version of the bundler using this command:

    $ gem list bundler 

And this is the result I get:

    *** LOCAL GEMS ***

    bundler (1.3.5, 1.3.0)

Although it says this, I still continue to get the error as mentioned above. Anyone know how to fix this? Thanks

Answer 1

您可能必须在bundle exec之前加上前缀：

bundle exec rails server

Answer 2

You can check bundler's version using

bundle -v

Prefixing your rails / rake command using bundle exec before will ensure ruby will use the gems required by your application.

bundle exec rails s