Rake gems:install says “could not find table”, rake db:migrate says “required gems missing”

Question

I just cloned a github repo on a fresh Ubuntu machine, running sqlite3 for all environments. rake db:create says development.sqlite3 already exists. rake db:migrate says I'm missing a bunch of required gems and should run rake gems:install . rake gems:install , of course, says it Could not find table 'studies' , which sounds to me like something rake db:migrate should fix.

I looked around the net and while lots of people have gotten 'could not find table' errors, they all got them from rake db:migrate , not rake gems:install . I'm suspecting it's an application-specific error, but still, any ideas would be appreciated.

PS: Ruby 1.8.7, Rails 2.3.8.

Answer 1

您始终可以使用gem install -r <gem name>或gem install -v=<gem version> -r <gem name>命令安装单独的gem，而不使用rake。

Answer 2

Is this a Rails 3 app? If so, you should run:

bundle install

Rails 3 uses Bundler instead of the rake tasks to manage gems. http://gembundler.com/

Answer 3

Did you try running with the trace option? Might help pin down the failing gem:

rake -t gems:install