Commonmarker gem cannot be installed (needed for jekyll) macos

Asked 3/9, 2020 at 18:5 Answered 16/1, 2022 at 6:26

what do I have to do, is there a problem with dependencies? How do I fix those? I am on catalina.

I repeatedly get this error and have already looked for the directory.. doesn't exist.

sudo bundle update
Password:
Fetching gem metadata from https://rubygems.org/...........
Fetching gem metadata from https://rubygems.org/.
Resolving dependencies.......
Bundler found conflicting requirements for the Ruby
version:
  In Gemfile:
    github-pages was resolved to 1, which depends on
      Ruby (~> 1.9.3)

jekyll-feed (~> 0.12) was resolved to 0.13.0, which
depends on
      Ruby (>= 2.3.0)

Bundler could not find compatible versions for gem
"commonmarker":
  In Gemfile:
    commonmarker (~> 0.21.0)

    github-pages was resolved to 203, which depends on
jekyll-commonmark-ghpages (= 0.1.6) was resolved
to 0.1.6, which depends on
        commonmarker (~> 0.17.6)
➜  blog git:(gh-pages) ✗ sudo gem install commonmarker
Building native extensions. This could take a while...
ERROR:  Error installing commonmarker:
    ERROR: Failed to build gem native extension.

    current directory: /Library/Ruby/Gems/2.6.0/gems/commonmarker-0.21.0/ext/commonmarker
/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 ./siteconf20200903-9124-19bmbh8.rb extconf.rb
creating Makefile

current directory: /Library/Ruby/Gems/2.6.0/gems/commonmarker-0.21.0/ext/commonmarker
make "DESTDIR=" clean

current directory: /Library/Ruby/Gems/2.6.0/gems/commonmarker-0.21.0/ext/commonmarker
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-darwin19/ruby/config.h', needed by `arena.o'.  Stop.

make failed, exit code 2

Gem files will remain installed in /Library/Ruby/Gems/2.6.0/gems/commonmarker-0.21.0 for inspection.
Results logged to /Library/Ruby/Gems/2.6.0/extensions/universal-darwin-19/2.6.0/commonmarker-0.21.0/gem_make.out

Commodore answered 3/9, 2020 at 18:5 Comment(3)

It's a problem building native extensions. Do you have Xcode and the command-line add-on installed, with the EULA accepted? – Bryant 3/9, 2020 at 19:16

github-pages was resolved to 1, which depends on Ruby (~> 1.9.3) is another major problem. version 1 was released in 2013 -- use a newer version of the gem. – Melburn 3/9, 2020 at 21:52

/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0/universal-darwin19/ruby/config.h

, in my case universal-darwin19 didn't exist but universal-darwin20 did. Make a symbolic link to universal-darwin20 named universal-darwin19 – Goetz 12/3, 2022 at 21:38

Sam's comments are correct. XCode's ruby framework is broken. A workaround is to make a symbolic link:

cd /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0
ln -sf universal-darwin20 universal-darwin19

With this, I was able to successfully build all the native extensions.

Note: You should change your path segment MacOSX11.1.sdk according to your local Xcode SDK installation.

Stellular answered 28/12, 2020 at 17:48 Comment(4)

This is correct, but should be

cd /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0 ln -sf universal-darwin20 universal-darwin19

– Coolie 7/1, 2021 at 5:45

^ universal-darwin19 is misspelled in the original answer – Coolie 7/1, 2021 at 5:46

Fixed the typo, thank you for pointing that out. – Stellular 8/1, 2021 at 15:55

Works, with a little Change on MacOS Monterey: cd into MacOSX13.1.sdk instead:

cd /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.1.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0/

and then run sudo ln -sf universal-darwin22 universal-darwin21 (without sudo it doesn't work). – Jaggery 9/2, 2023 at 10:39

For those on MacOS without XCode and only command line tools installed:

cd /Library/Developer/CommandLineTools/SDKs/MacOSX11.3.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0
sudo ln -sf universal-darwin20 universal-darwin21

...tweaking the MacOSX11.3.sdk segment in the path if need be.

Sermon answered 27/12, 2021 at 15:18 Comment(1)

This answered worked for me instead of the one above due to the symbolic link creation. The target was expecting universal-darwin21 but only universal-darwin19 existed. MacOSX10.15.sdk – Biologist 23/8, 2022 at 0:4

I had this same problem with a different gem; I found that

/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0/universal-darwin19/ruby/config.h

didn't exist, but

/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0/universal-darwin20/ruby/config.h

did exist - i.e. universal-darwin20 rather than universal-darwin19.

If I ran my install command using a newer version of Ruby, it worked.

Exactly how to do this will differ for different setups. I was using rbenv, so ran rbenv local 2.6.6 before the install command.

You can read more about running multiple Ruby versions here, or you could just run a single Ruby version but try upgrading it to a newer version (e.g. brew upgrade ruby if you're using Homebrew).

Cesspool answered 9/9, 2020 at 14:50 Comment(0)

I also needed a symbolic link, but my ruby installation was in a different location (/Library/Developer/... vs /Applications/Xcode.app/...), for that reason, the commands I used to fix my local github-pages installation were:

cd /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0/

sudo ln -sf universal-darwin19 universal-darwin20

Volute answered 16/1, 2022 at 6:26 Comment(0)

-1

cd path like your log error /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0

and dupplicate and rename folder copy universal-darwin20 to universal-darwin19

now it is working.
You can try higher version ruby or rails. gem support for it

Lavaliere answered 11/1, 2021 at 22:55 Comment(0)

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