Is there a fix for the “Could not find *gem* in any of the sources” error that doesn't involve deleting Gemfile.lock?

问题

I am trying to get my development environment setup on a new computer.

git clone -o heroku git@heroku.com:theirapp.git
cd theirapp
bundle
Fetching gem metadata from https://rubygems.org/......
Fetching gem metadata from https://rubygems.org/..
Could not find jquery-rails-2.0.0 in any of the sources

After googling this error, the response seems to be to delete Gemfile.lock, then running bundle again. This works, but then I have different versions of gems where I haven't specified a version in Gemfile. Is there a way to fix this error without deleting Gemfile.lock? I'm using Rails 3.2 and Ruby 1.9.3.

回答1:

According to rubygems.org, jquery-rails 2.0.0 has been yanked. That explains the error you had with jquery-rails.

Running $ bundle update jquery-rails will rebuild your gem snapshot. That way you don't have to delete Gemfile.lock

回答2:

simply run

bundle --full-index

that should do the trick

回答3:

An old version of bundler was giving me this same issue. After a bunch of puzzling, I realized that this was the issue.

Running gem install bundler fixed it completely.

回答4:

bundle update jquery-rails will update just the jquery-rails gem, which is likely what you're looking for. Running bundle update is the equivalent of deleting Gemfile.lock and is not recommended in most cases. See here: Heroku push rejected: can't find jquery-rails-2.0.0 in sources

回答5:

I've found it safest ALWAYS to specify gem versions, and only change them when necessary. Saved me a LOT of trouble.

来源：https://stackoverflow.com/questions/11885398/is-there-a-fix-for-the-could-not-find-gem-in-any-of-the-sources-error-that-d