How to fix Your Ruby version is 2 3 0 but your Gemfile specified 2 2 5 while server starting

Question

I am getting this error while running server  how do I fix this

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For   Your Ruby version is 2 3 0  but your Gemfile specified 2 4 1         Changed 2 4 1 in Gemfile to 2 3 0

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Add the following to your Gemfile  ruby  2 3 0

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it can also be in your capistrano config  Capfile   set  rbenv ruby   quot 2 7 1 quot

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If you are using rbenv then make sure that you run the  rbenv rehash  command after you set local or global ruby version  It solved the issue for me   rbenv rehash

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I am on Mac OS Sierra  I had to update  etc paths and add  Users my username  rbenv shims to the top of the list

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Your Gemfile has a line reading  ruby  2 2 5    Change it to  ruby  2 3 0    Then run  bundle install

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I had this problem but I solved it by installing the version of the ruby that is specified in my gem file using the RVM     rvm install  ruby version   After the installation  I use the following command to use the the version that you installed      rvm --default use  ruby version   You have to install bundler by using the following command in order to use the latest version     gem install bundler   After the above steps  you can now run following command to install the gems specified on the gemfile     bundle install

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You better install Ruby 2 2 5 for compatibility  The Ruby version in your local machine is different from the one declared in Gemfile   If you re using rvm   rvm install 2 2 5 rvm use 2 2 5   else if you re using rbenv   rbenv install 2 2 5 rbenv local 2 2 5   else if you can not change ruby version by rbenv  read here

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A problem I had on my Mac using rbenv was that when I first set it up  it loaded a bunch of ruby executables in  usr local bin - these executables loaded the system ruby  rather than the current version  If you run which bundle And it shows  usr local bin bundle you may have this issue  Search through  usr local bin and delete any files that start with    user bin ruby Then run rbenv rehash

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Two steps worked for me   gem install bundler  bundle install --redownload   Forces a redownload of all gems on the gemfile  assigning them to the new bundler

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If you have already installed 2 2 5 and set as current ruby version  but still showing the same error even if the Ruby version 2 3 0 is not even installed  then just install the bundler   gem install bundler   and then   bundle install

[ruby-on-rails] How to fix "Your Ruby version is 2.3.0, but your Gemfile specified 2.2.5" while server starting

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