I am using Ruby Enterprise Edition for my project. When I check all my rake task by run the command rake -T , I got the following error message:
You have already activated rake 0.9.2.2, but your Gemfile requires rake 0.9.2. Using bundle exec may solve this.
The error message implies that I can use bundle exec to solve the problem, but I am not sure how? So, how to get rid of this error message?
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I prefer to update my Gemfile instead of run bundle exec rake -T. But when I open my project Gemfile, I did not see rake 0.9.2 in my Gemfile, why the error message complains that I have it? Where could be the place I defined rake 0.9.2??
Run bundle exec rake -T, this ensures that the version of rake that is specified in your Gemfile is running, not another version.
Alternatively, update your Gemfile.
This is because your rake tool does not match the version written in the Gemfile.
You first need to run this command, to ensure rake 0.9.2 get installed:
bundle install
Then, you can run rake 0.9.2 with the following command:
bundle exec rake -T
The bundle thing is a nice tool to help you manage the dependency of your application. You can get more info from here.
Related
I am in process of installing Redmine app via RedmineInstall documentation I try step 5 :
bundle exec rake db:migrate
then error shows :
bundler: command not found: rake
Install missing gem executables with ´bundle install´
I use redmine 3.3.0 64 for windows
I use redmine gemfile and rake was installed (i see Using rake 11.2.2)
I tried reinstall it via bundle install or gem install/uninstall, but did not help (see Successfully installed rake-11.2.2 but rake do not work).
I tried this command from ruby/bin directory or redmine directory not success.
I do not understand, that rake is successfully installed, but when i try use it with bundle it says that command not found.
The problem may be in the directory where the Redmine or rake?
Try rake db:migrate in your redmine directory without bundle exec and see if that resolves your issue.
Bundler usually provides bin stubs for rake and other gem files, so that bundle exec is not necessary or will even fail because it will look in an other gem directory where, in this case, rake might not be installed.
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.
After this error in my web page when i have run > rake db:migrate. It shows error such as:
rake aborted!
you have already activated rake 10.1.1 but you gemfile requires rake 10.1.0 using bundle exec may solve this.
when i tried with bundle exec rake db:migrate it works.
And when i tried with the rake db:migrate. i shows error
My question is:
What is the difference between bundle exec rake db:migrate and rake db:migrate.
every time i have to do like this if yes then why?
What is the problem in my project.
Thanks.
bundle exec rake db:migrate will run rake db:migrate with the environment of your Gemfile.
You have an error because your Gemfile requires a version of rake but you have a newer one installed on your system.
By default, rake will run the latest available version, hence the mismatch.
You should always prefix your commands with bundle exec inside a project managed by bundler, I personally alias bx to bundle exec.
You can also use binstubs
Try to run bundle update.
It seems, that your Gemfile.lock is out of sync with your Gemfile.
What is the difference between doing:
bundle exec rake
and
rake
I see people doing both, I never do bundle before my commands, curious what the reason for it is?
bundle exec executes a command in the context of the bundle.
This command executes the command, making all gems specified in the Gemfile available to require in Ruby programs.
Very useful when you have many applications with different versions of gems used
in them.
Please see docs for more information: http://gembundler.com/man/bundle-exec.1.html
bundle exec runs the command after it in the environment of Bundler. So say you had rake 0.9 in you Gemfile, but rake 10 installed in RubyGems.bundle exec rake will run rake 0.9 instead of rake 10.
I have Rake version 0.9.1 but I need to use 0.8.7 for a project, and I'm fairly certain I have both version installed but it always uses 0.9.1 by default. Is there a way to specify which version of Rake to use?
I'm trying to run this: rake db:drop db:create db:migrate db:seed
and I get this error:
You have already activated rake 0.9.1, but your Gemfile requires rake 0.8.7. Consider using bundle exec.
gem search (or list) rake, should tell you which versions are installed.
You can invoke rake with a specific version number bracketed with
underscores.
$rake _0.7.3_
This is a standard feature of gem packaged binaries.
You can specify the version of Rake to use, in your Gemfile:
gem 'rake', '0.8.7'
Though the "error" message you are getting says it all... you need to run:
bundle exec rake ...
... in order to use the right rake to run your rake tasks.
More info on bundle exec: http://gembundler.com/man/bundle-exec.1.html
Try executing gem uninstall rake then just pick the version you want to uninstall.
It happens because you are using rake from the system. (latest version by default)
The solution is use follow command:
bundle exec rake db:migrate
Also, you can create alias. Because this command is too big and difficult to write.
echo "alias be='bundle exec'" >> ~/.bash_profile
source ~/.bash_profile
Then you can use follow short command:
be rake db:migrate