gem install rails "ERROR: While executing gem ... (Gem::FilePermissionError)..."

Question

Getting my local environment setup for Ruby on Rails.

So I have rails installed in my .rbenv file, and when I type which rails, that's confirmed.

where rails shows the /Users/<username>/.rbenv/shims folder where rails is multiple times, like 15 times currently, then one single entry for usr/bin/rails.

However, if you run rails --version, you get this:

Rails is not currently installed on this system. To get the latest version, simply type:

    $ sudo gem install rails

You can then rerun your "rails" command.

If you run gem install rails, you get this:

ERROR:  While executing gem ... (Gem::FilePermissionError)
    You don't have write permissions for the /Library/Ruby/Gems/2.6.0 directory.

But if you go back and run where rails again, you'll get even more entries for the /Users/<username>/.rbenv/shims directory, indicating that it's incrementing each time.

Tried to add an env variable my ~/.zshrc as per some guidance online, as so: export GEM_HOME="$HOME/.gem"

When I save and source it, I get a different error:

Building native extensions. This could take a while...
ERROR:  Error installing rails:
        ERROR: Failed to build gem native extension.

    current directory: /Users/<username>/.gem/gems/racc-1.7.3/ext/racc/cparse
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/bin/ruby -I /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0 -r ./siteconf20240118-44186-1bplyzo.rb extconf.rb
creating Makefile

current directory: /Users/<username>/.gem/gems/racc-1.7.3/ext/racc/cparse
make "DESTDIR=" clean

current directory: /Users/<username>/.gem/gems/racc-1.7.3/ext/racc/cparse
make "DESTDIR="
make: *** No rule to make target `/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0/universal-darwin22/ruby/config.h', needed by `cparse.o'.  Stop.

make failed, exit code 2

Gem files will remain installed in /Users/<username>/.gem/gems/racc-1.7.3 for inspection.
Results logged to /Users/addie/.gem/extensions/universal-darwin-22/2.6.0/racc-1.7.3/gem_make.out

Anyone have any idea how to resolve this?

How did you install ruby? It seems like your whole setup might be broken. — engineersmnky
– engineersmnky, Commented Jan 18, 2024 at 21:16
Engineersmnsky i don't recall exactly how, i believe through brew? Beartech Not sure which ones you mean. How would I go about checking? — addsplendor
– addsplendor, Commented Jan 20, 2024 at 2:38

Ahmed Hamdy · Accepted Answer · 2024-03-24 15:44:08Z

0

try sudo gem install rails and add your password, I faced this issue while trying gem install cocoapods

answered Mar 24, 2024 at 15:44

Ahmed Hamdy

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