windows heroku run rake db:migrate error “/usr/bin/env: ruby.exe: No such file or directory”

Question

I\'m pretty new to Rails here and I\'ve followed Ruby on Rails Tutorial for most of it. I have since decided to make my own application, but using the Rails 4 gem in beta. I

Answer 1

Try this:

sudo apt-get install build-essential patch ruby-dev zlib1g-dev liblzma-dev

and then install Nokogiri:

gem install nokogiri

Answer 2

I had this same problem, changed ruby.exe to ruby in the three files as described above, executed the

    git push heroku master

step, which told me everything was up to date. Trying the

    heroku run rake db:migrate

step again, it still didn't work; I got the same error about no such file or directory for ruby.exe. I examined my gemfile.lock as directed, but didn't see anything that looked windows-y.

I then executed these:

    git add .
    git commit -m "My comment"

and tried again with

    git push heroku master

This time, boatloads of messages went by, including:

    Removing Gemfile.lock because it was generated on Windows.

so perhaps there was something wrong with it and I just didn't know what I should be looking for in it.

Trying again to

    heroku run rake db:migrate

looks to have worked, as I got

    Running rake db:migrate attached to terminal... up, run.3260
    ==  CreateUsers: migrating ====================================================
    -- create_table(:users)
       -> 0.0409s
    ==  CreateUsers: migrated (0.0412s) ===========================================

My best guess is that the change to remove the .exe from bundle, rake, and rails did not actually get pushed up on the first try of git push heroku master and the git add . and git commit -m "My comment" were necessary to make it get pushed up. This is my first attempt at anything with git/heroku/ruby, so I don't know enough to say why the other two commands were required, but leave my experience documented here in case it helps anybody else.
Thanks so much for the clue above that it was the .exe in those three files that caused the problem.

Answer 3

I had a similar issue and as others have already stated, changing the below helped.

#!/usr/bin/env ruby.exe to #!/usr/bin/env ruby

However, I also needed to remove some hidden carriage returns which were still present from developing on Windows originally (I guess?).

I used dos2unix to do this.

dos2unix bin/bundle bin/rake bin/rails

After that, I committed my changes, pushed to heroku and all was good.

Answer 4

You need to change in your application first line of the 3 files:

bin/bundle
bin/rails
bin/rake

Instead

#!/usr/bin/env ruby.exe

must be

#!/usr/bin/env ruby

That's why is error:

/usr/bin/env: ruby.exe: No such file or directory

Then you do successfully:

heroku run rake db:migrate

It's work for me.

Answer 5

bin/bundle
bin/rails
bin/rake

Instead

#!/usr/bin/env ruby.exe

must be

#!/usr/bin/env ruby

(thanks to previous post)

make sure there are no references to windows in the gemfile.lock - they can just be deleted

then

git push heroku master

if there are still problems use

heroku logs (copying text to a text editor makes it easier to cut and paste for solutions)