I have a rails app i've been working on for a while and it was always working and testing fine. Then for some reason today when I tried rake db:migrate I get the message below. I have started using git recently. Whether that has anything to do with it I don't know.
Gem::LoadError: You have already activated rake 10.5.0, but your Gemfile requires rake 10.4.2. Prepending bundle exec to your command may solve this.
If i type bundle exec rake db:migrate it seems to complete the migration the issue now is that in the new view when the user hits the submit button the create action isn't called. So the data isn't entered into the database.
Any ideas would be great. Thanks.
You have to run bundle update on the terminal. I was also facing the same issue but after bundle update everything got fixed.
In my case
I used existing rvm gemset for new project
After bundle install (for new project) I had rake (10.5.0) in new project's Gemfile.lock
Old project is more important so I uninstalled rake 10.5.0 rvm gemset use <gemsetname>; gem uninstall rake + select 10.5.0 (asked in console)
rake (10.4.2) in new project's Gemfile.lock
Related
I've been running a Rails 3.2 with Ruby 1.9.3 for a while now. Recently I added Rails 5.1 and Ruby 2.4.
I used rvm to install Ruby2.4.
Today I had occasion to cd into one of my old projects and run rake db:migrate, and I got the following message:
Gem::LoadError: You have already activated rake 12.0.0, but your Gemfile requires rake 0.9.2.2. Prepending `bundle exec` to your command may solve this.
Prepending 'bundle exec' did solve the problem but for my knowledge I would like to understand what happened. I thought the whole point of a Gem file within the project was to lock in the required gems.
So somewhere on my machine clearly there is still rake 0.9.2.2 but why did my command 'rake db:migrate' not use that automatically?
Reason: Some of the gem might have locked rake gem to that version.You are getting this as version of rake inside gemlock file is different than the one you have already installed.
Solution1:
bundle update
Solution2:
edit the gemlock file. open Gemfile.lock and change
rake (0.9.2.2) to rake (12.0.0)
Solution3:
remove Gemfile.lock and run bundle install once again.This will create
Gemfile.lock once again.
I try to run rake routes on an older Rails application, then I got this:
Gem::LoadError: You have already activated rake 11.1.2, but your Gemfile requires rake 10.4.2. Prepending `bundle exec` to your command may solve this.
So I tried bundle exec, it works.
But how can I change my Gemfile so that I don't have to bundle exec,
rake 10.4.2 is not explicitly in my Gemfile.
Thanks.
Your current gemset has rake version 11.1.2, but your Gemfile.lock requires to use older version (namely 10.4.2).
If updating your project gems versions won't break your project, you can delete Gemfile.lock file and then run bundle install to create a new one. Then, the "problem" should be fixed.
When I do rake db:migrate, I get the following error:
rake aborted!
Gem::LoadError: You have already activated rake 10.2.2, but your Gemfile requires rake 10.1.0. Using bundle exec may solve this.
How can solve this?
This error is due to the fact that some applications may specify different versions of gems than the ones you have installed.
Try using bundle exec rake db:migrate.
Using bundle exec guarantees that the program is run with the environment specified in the gemfile.
Perhaps:
bundle exec rake db:migrate
There might be other gems in the Gemfile which are dependent on rake 10.2.2, while you are trying to install rake 10.1.0 via your gemfile or explicitly mentioned it. A look into your Gemfile will help.
In case you have specific environment, you may want to run
bundle exec rake db:migrate
to make sure you are running it appropriately.
As per another answer given on this topic, you can also try deleting the Gemfile.lock file and re-running bundle install to regenerate the Gem dependencies.
When I tried to push to heroku I get this msg:
rake aborted!
undefined method empty? for nil:NilClass
(in /tmp/build_3d16ad44-0015-4ecb-a7cf-a41959f03f82/app/assets/stylesheets/application.css.scss)
Upon tracing it, I realized that it's because
rake aborted!
You have already activated rake 10.0.3, but your Gemfile requires rake 0.9.2.2. Using bundle exec may solve this.
This may be a really dumb question, but I am not sure how I am supposed to use bundle exec to do this for heroku? Please help. Thanks.
In case anyone else runs into a similar issue. The problem was that heroku was using ruby 2.0 with all their new apps so in order to do that you have to put whatever ruby version you are using on the gemfile then reset git by typing git reset --soft HEAD~ and then git reset HEAD public/assets into your command line. And rm -r public/assets if you have untracked files in public/assets. Then save the changes and push up to your new site.
So if your app uses an older version of ruby than 2.0, you will have to make similar changes until the bug (sprocket?) is fixed.
Inside the project directory in terminal:
gem list rake
You will see more than one version. If so, then remove the version you don't need (i.e. 10.0.3 in your case) by command:
gem uninstall rake
It will ask you specific version to select from list, choose one and press enter.
Or, you can also update to specific rake version
bundle update rake -v '0.9.2.2'
I am getting an error when trying to run rake db:migrate here:
http://pastie.org/2058143
I've re-installed Rake a few times now after downgrading from Rails 3.1 RC (bad idea to upgrade to that) to Rails 3.0, which is what I'm using now.
EDIT: This was solved by doing 'gem install rake -v=0.8.7', I think I forgot to do this after I uninstalled the previous version(s) and the Rakefile was missing.
One possible solution. Open your gemlock file and delete the entire write up there and save it. if you dont have rake 0.8.7 file on your application create a new app that uses rake 0.8.7 possibly with rails 3.0.8 then copy its rake file and replace it with your previous one